To help yourself and all the others that will follow you, could you post a couple shots of the engine compartment and include measurements?
Stuff like crankshaft centerline to crossmember (vertical), engine offset if any, length of current engine from bellhousing to front of radiator, width of engine with exhaust, height, width and thickness of radiator, distance from engine/bellhousing line to firewall, and angles of engine front-to-back and side-to-side, if any.
If there are any tight spots, mention those too.