You'll definately be replacing everything. The yards often pop the locks so the doors can open. A car thats had stuff stripped has often had the doors left open for the rain and stuff to blow in.
Just ask around the various boards to find someone with a cheap roller that you can just drop an engine and/or trans into.
Now that I think about it, want to buy a 1988 Trans Am?
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I USED TO HAVE an 85 Camaro 305 4bbl, 90 Firebird V6, 97 Firebird V6 (10 speakers!). Despite the two family vehicles, 3 kids, wife and mortgage, I can finally realize the dream - 88 TA almost all stock... for now.
http://www.cardomain.com/id/untameddave
Wanted this -

, but ended up with this -

for free. Can't argue with free.