[kaisen]

Back to the initial question

I'd recommend a 1998-2002 Trans Am WS6 or Firehawk (LS1 6speed)
Not a regular T/A, not a Formula
Either a real WS6 or SLP Firehawk
The newest year you can afford....year not miles
Any color you prefer, but with Black interior (no tan)
Modded is fine as long as you still have kept the original pieces

If you buy in the $10-12K price range your cost of ownership for the next decade should be much less than keeping your 964