A couple of thoughts to consider ...and this is SERIOUS generalisation ...
I know you're really looking for available patterns but doublet & gown are not the most difficult things to make if you take care & get help.
As suggested previously ... do this in a cheap cloth first ... it won't hang the same but what you're after is the size and your own personal pattern.
Don't try to be too clever or fancy. Most C15th clothing is all pretty basic and made of simple shapes stiched together.
1. 1460-1485 in fashion terms is a bit like saying 1960-1985 ... there are massive changes as new fabrics entered the market and the political landscape changed.
2. Swiss/Burgundian or Wars of the Roses ... they are almost mutually exclusive as English style is not the same as Swiss which is not the same as German (North or South ... etc etc)... so I'll presume a Low Countries middling would be most applicable to you.
As regards (1) ... being Middle Aged and Middle class is a definite advantage as your clothing avoids the exceses of fashion, but remember conservative does not necessarily mean out of date.
OK ... here goes, I hope this helps.
1. Doublet.
Close fitting with a stand-up collar.
The pattern is relatively simple ... 4 body panels which reach to the hip. You don't need the 'skirt' of C16th doublets & most commercial patterns. You will get some 'rucking' in the small of the back but that's normal & period.
Swiss doublet often have VERY deep arm holes ... I won't advise this. Better stick to a more northern style ... close fitting sleeve. Fashionable is a short puffed upper sleeve (basically covering the biceps) which should be worn if you have a puffed sleeved gown but this is more work.
For a good quality doublet you'd often use a better cloth for the cuffs and collar e.g. woollen body/sleeves & silk cuff/collar. The cuffs are about half way up the forearm (cuffs closed with a couple of buttons). The collar is the key to the C15th doublet-look. Best style is to cut neck line front & back the same ... this makes the back nck-line run low between the shoulder baldes. This can be exagerrated slightly deeper if desired. Into this U/V add the 2-piece collar and lap it around the neck. Th collar piece is a 'stretched' triangle so it's about 1 inch at the throat but c.8 inches at the back. The back seam of the collar should allow the collar to sit fairly close to the neck but upright, rather than rolling over the shoulkders as modern collars do.
The front can be closed by lacing or points usualy, but buttons are occasionally seen. A clssic style is a Z-lacing from waist to chest then points at the throat.
The bottom hem holds the points for the hose...these are at the edge of the bottom hem. That is why when loosened for active wear you see the shirt hanging out at the back.
2. Gown
For middle aged/middling degree then a good heavy wool gown is essential. This is one of the simplest things to make (honest)!
Basically it should reach below the groin (this being referenced as a young mans fashion in 1463) but I'd suggest just below the knee or floor level depending on
a) what you'e doing
b) how much momey you want to spend.
However the pattern doesn't really change.
the fit at the shoulder is slightly larger than the doublet so that it fits over it. Personally I'd leave the neck as per the body of the doublet ... so the doublet collar shows & you have a U/V bak to the gown (they also had collar & half-collar gowns but this is both more common & easier)
From the shoulder the side seams basically go in a straight line so the pattern is loose fitting at the chest and about 3 inches too big at the hips and then continues out to the hem. Then take the centre lines and widen these in another straight line from neck to waist so it's another 3 inches too wide at the hips ... this should mean its about 12 inches too wide at the hips ... play with this excess to suit the cloth as it is this which forms the characteristic pleating.
The pattern should look like 4 big triangles with a curved bottom hem. The reason for the width at the centre is that the cloth needs to fold into the centre not under your arms.
The sleeves are made with a full cut and c.25% extra to allow for gathering from middle back over the top of the shoulder to 1/4 way round the front ... this means there is more plating at the back helping create the sway back look.
If you hve a puffed sleeve doublet then this will pad the sleeve head. However taper the sleeve down to a loose fitting wrist. No need for a closure.
When wearing use a belt to gather the excss cloth into pleats at front and back. If the cloth has enough weight it will hold these without the need for any stitching.
3. Hood
I agree wth Gwen, go for a straight insert of the lirapipe/tail but otherwise the patterns are find.
Linings ... doublet does require lining in linen to give oit he strength it requires
Gown can be lined or not. Best lined but according to season. Use trim & purfels if want prestige look ... but match fur type to quality of cloth.
Spend more on good wool (fine worsted for doublet, heavy and well fulled for gown) and the results will rally show.
Colours ... safe bets ... a good russet/red for doublet. If use silk for collar then black. Gowns reds, blues, greens. Better quality colour than doublet as finer cloth and on show. Depth & warmth of colour is important. If it is harsh/cold to the eye it is probably wrong.
Hope this helps .. also I think I put this in the ARMET area under CLothing Standards some hints on cloth & colours ...
Cheers
Dave