Jesus Christ! That is quite a list Sci2000tech put up there! OP, I can understand the need/want to get out of a 240 for a higher class of sports car though. Have you considered moving to the JZZ30 chassis? Think of it as a luxury Supra at a quarter of the price...
Now that I think of it, if the deal wasn't fake... the chick probably isn't answering phone calls because:
a) The car has already been sold. Can't expect Supra's to stay available at that price.
b) She figured out what the car was worth and didn't want to deal with renegotiating with you.