Need big block help.

I'm not reading through all that - I too am on a budget - No.1 thing you can do is bookmark a craigslist search - I found a ad for a torker 383 intake and ended up getting $900 worth of parts for $340 - guy was parting out a C body wagon and returning it back to stock

If the motor runs I would leave the pistons/rods/crank alone - everything else here is what I would do -

sell tunnel ram/1 of the Edel's (keep one for your motor)
Edelbrock rpm intake
Mopar shim head gaskets to bump the compression
a Comp Cams K kit (includes everything needed for a cam swap including springs)
3000rpm stall or so
aluminum water pump kit from eBay
shift kit for the trans
8 3/4 or Ford 8.8 for your car
Hedman B body headers
Summit 2.5" X or H pipe
and summit flowmaster mufflers (or the Summit header back exhaust kit for $260)

The driveshaft will need to be cut and rebalanced