easier to pull just the motor or motor and tranny as one?

Go ahead and do a "Chip Foose" and see how far you get in trying to pull a smallblock and
auto trans as a single unit? Ha!!! you either beat up the oil pan on the radiator support or you could just use an old Sox and Martin trick and cut out the top of the radiator support and bolt it back in latter. Been there done that, never again. Be smart
and work safe. Always pull engine separate from transmission. And watch the fluids,
Drain them first. 1967 Dodge Dart Gt, now with stroke 408 ci, 727 running 3:55 in the 8-3/4 rear till it explodes..... Arnie.