Advice small block K frame with Schumacher conversion mounts for a big block

I was going to drop the engine / trans in from the top. Is this a major prob going in from the top ?

FWIW, The deeper the oil pan the more difficult an engine/trans assy. will be from the top. It can get real tight between the K-member and firewall. A top install can be a bit easier if you lift the rear of the car.