Installing motor Tuesday

Searched but found surprisingly little info. Motor going-in the old-fashioned way from the top. I'm hoping to bolt the motor and tranny together first with exh manifolds, starter, pulleys, motor mount brackets.
This is 1970 Duster 340 all original stuff. Most of the info I found was for guys with headers or engine swaps.
Any surprises I should be aware of? I will have at least 2 other morons helping me. Sorry and thanks......it's been a long time since I've done this.
I didn't want to go the "bolt it to the K-frame first and install from below" route since neither me nor any of the afore-mentioned morons have any experience with this.