Parts and conversion enquiry

Good morning!
I own a 1964 American Motors Rambler Ambassador 990. The car is equipped with a 327 V8, 2 bbl Holley carb, automatic transmission and a torque tube type rearend. Any idea where I may be to locate or get info on the following: 1). Engine performance parts
2). Disc brake conversion kit
3). Vacuum to electric wiper conversion kit
4. Rear differential conversion (torque tube elimination)
5). Factory 4 bbl intake and carb.

Please respond!
LM:confused:

Ihave a 65 220 rambler and mounted a ford 8inch from a mavric i belive it 53 inches from back plate to back plate it mounted nicely just had to move spring preches the wipers any newer moters will mount just have to get wire harnes mine had vac and changed that to i know it hard to find parts for these thing i need a rear window but theres a place in ill or ind that took over ed stack in cali inventory hope i was some help i grew up on amc