The main fabric for this is a light weight woven 100% wool, and the lining fabric is a scottish check polyester - probably not very historical, but John gets to pick the lining on the things I make him so that he can put his style stamp on them! I'm also using hair canvas, linen and stay tape for the insides.
I've started with the waistcoat, and I'm using a hybrid of the methods from the instructions and the period instructions in 'The Victorian Tailor' - basically I want it to be more authentic than normal, and I'm doing a lot of hand sewing, but I don't have the time to be fully authentic so there's some short cuts and some machine sewing too.
I've taken a load of photos so I can give you a step by step on what I've done so far - check out the captions for a description of whats happening.