If the OP is still around, do not spend one penny more on that basket case. Sell it for whatever you can and buy a good running, complete, low mile, non abused V8 Mustang. The worst choice in my opinion are the 94-95 years. They still had pushrod motors and a heavier body. $6500 is more than enough money for you to buy a nice ALREADY modified Mustang- either a fox body or 96-2003 model. If you choose to ignore everyone's advice, then good luck to you, but expect a LOT of I told you so.
Lastly, leave your attitude at the door. You will get more help that way.
Lastly, leave your attitude at the door. You will get more help that way.