if it's a 6-speed, $40,000 USD is a very average price for a 1996 with that mileage.
but you are making it sound like, I will either buy this 1997 Supra for $40'gs or if not I will get a mk3 Supra.
sign up on
www.supraforums.com and go see the for sale classfields
also go search around on ebay.
you can EASILY find a 1993 - 1995 Toyota Supra TT 6-spd with around 60k - 110k miles for between 24 - 30k in great condition. So that's already 10k + off that 40k price.
I was just looking at a few supras for sale on supraforums today, one was a 94' with 90k miles 6-speed, and the guy was asking 27k.
so good luck with your search, there's a lot out there.
and if your going with a Supra go with MKIV, these cars are legendary and there value will in the near future.