Help me spend 5 grand

[66clow]

I may be getting 5 grand to spend on my truck and not sure what I should spend it on. What would you do? I'd prefer maybe mechanical, suspension, and wheels? Would love to do a Ls swap but not sure what that would run me. Engine runs pretty good just need to fix a few leaks but I don't know how many miles are on it. Has a 350 350. So possibly a new crate 350? I'd like to do a notch, drop spindles to get to a 5 7 drop or maybe bag it? Maybe finish interior. Ac is high on the list too, just moved to Clearwater beach Florida. Any mechanical shop recommendations around here? I'm working on the body myself. I know I can't do everything but would like some suggestions.
This is what I'm working with.