dakota 4cyl to V8 Swap

Hey guys, and gals.
I'm wanting to swap out my four banger/5-speed for a smallblock. Got the motor/trans ready for the swap. I am using schumacer motor mounts. I was just wondering if when someone has done this swap what they did for a trans mount. I am using a 904. I just didn't know if I could get a A515 aod crossmount and how close the A515 was to the 904 trans. Any tricks for a drive shaft? Any help would be appreciated, Thanks, Sean