Low buck 360 rebuild
For the carb hit a local swap meet or check ebay, the swap meet section on this site, and on moparts. I would not pay much more than around 75 to 100$ for any used carb that needs to be rebuilt. I bought a 625 carter afb in excellent condition off of ebay for $50, very nice carb. Needed a rebuild but it was as nice as any new carb in appearance as I have seen.