What would it take

Thanks guys,

My set up currently is next to nothing this is why I asked so that I build it right once.
Rear is an 8 3/4 non posi 727 trans 360 4 brl that needs a rebuild manual brakes manual steering with the quick ratio arm. I was going to go big block but whoa way too expensive.
I have decided to rebuild 360 : rear gears I am wanting to go posi once i learn correct ratio needed trans is good will put a shift kit in it and a torque converter i also intend on frame connectors i have cheap 14" fake center line wheels atm but really want to spend last on a new set. this is all in a 1971 scamp (heads will be j heads due to what i have and budget)