I have a 1994 mustang cobra with a vortec V-2 si supercharged 331 motor.With a built T-5 trans.I picked the 94 for the 5.0 and T5 which I knew would swap over to 1st gen mustangs.And now I've bouht a 1969 mustang with a super clean and straight body.And want to know what parts I can use.The 69 needs a wiring harness.Can I use the one from my 94.What about my fuel system?Can I use my intank pump?And my rear end?I read you can use an explorer rear end?The car also came with a 9 inch not installed but a 8 inch already in the car.If some one can direct me in the right direction to find some of these answers I would apperciate it.Thanks.