Hi,
I've got a 45 2 ton with a 235. My plan is to swap in a 86 305v8. So anything you learn would be helpful to me. So far I have not pulled either engine so I can't say about tranny boltup or such. For now I am working on the left motomount wedge. I plan to leave the orig. steering gearbox where it is and that's right in the way. With luck, I'll be able to work something out.
Let me know how your project workes out.

BTW are you westriver or east. My roots are in Sturgis and that's were my 45 sat for nearly 50 years.