1946 Matchless flat tracker

Well haven't been here for a while. The last time I tried to rebuild the engine 2 years ago I couldn't find a piston so I shelved it, I hated seeing it just sit around and just dug into it. Turns out the bottom end is a 46 GL3 with a 1951 connecting rod on a 46 crankshaft giving it a 3.91 stroke a 51 barrel and head making it a stroker motor 383cc, also 1951 front end and rims, I'm guessing for the larger axles. So the shop is going through a complete makeover A/C and new equipment so I'm playing around with the bike in my living room and the new wife is just thrilled about it, plus all the baggies from 25+ years ago were rotted and everything is mixed up so I have nuts and bolts all over the place. I still have boxes of parts to go through, I hope the rest of the bike is there.