By summer there will be 07-08's in this range. There is a handful of 09's in the mid 30's right now, and with the realease of the 10' and even better 11' the market is going to be flooded with cars.
Get a new 2011 GT and throw a few mods on it, sure it wont have the potential as a GT500 but itll be alot cheaper and still have full warranty.
Oh and with light mods should hit mid 12s still
you should def look into rebuilts if thats your budget. i bought dan's an couldn't be happier with it. i had an '03 termi that had never been in an accident and this car is nicer!