T-45 to TR3650 swap for a 2000 mustang GT

I'm interested in doing a TR3650 swap in my 2000 GT, what i'm interested in knowing is what all needs to be done to make it happen. What parts can I reuse that'll work with the Tr3650. I think I've heard that in 96-98 mustangs the cross member location has to be relocated but in my case is it a direct bolt up?

1st gear and reverse grind. You have to have put it in 2nd than go 1st for it to not grind. And same for reverse, put it in 5th then reverse. Not trying to make crazy horsepower, since the 4.6 is limited, thinking of running a 100-150 shot of nitrous or a turbo setup