Thoughts I would have:
1) balanced crank, good rod, crank and head bolts (like ARP)
2) new rod and main bearings (I like OEM)
3) correct head gasket and conversion done for the Frankenstein.
4)you already have pistons and cams.....clay the motor so you can see if your piston to valve clearance is sufficient.
5) get it running and have it dyno tuned with a decent socketed ECU (I like Hondata)