1990 huge list of problems!

i'm starting to think this things gonna be sitting on a corner with a orange sign in the window!:banghead:
window wipers come on really slow then get stuck in the up position when they're turned off. (window wiper motor)
new exhaust needed front to back (200 including custom dual exits)
but the one that's killing me is the damn door locks just broke! I can't close them manually or with the stupid key! i think it's the broken driver's rear door but i'm not sure. anyone know what i might be spending my money on to fix or should i just take her to midas? thanx

Independent garages should give you the cheapest price... I have owned GM for 26 years, and unless you work on them yourself, it might not be the best choice.