You know, I usually associate "
HELP please" with a cry of distress.

Can I have your problem?
I'd personally get the 'Vette. However if think you might spend a few weeks looking for the right one, it may be worth it to wait the 6 weeks, as it seems 1) your TA might be gone soon & you don't really have a DD and 2) your first choice is the mustang.