thinking about a 72 c20??????

[84 400]

i was looking on the web and found a 1972 c20 for sale for 500.00 right near me. cab is on the frame and the frame is on wheels. Any ways i was looking at it as a project truck. had a 454 th400 in it but the po pulled that out.

!st question:
how hard is it to drop a 700r4 and 305 from a 85 c10 into this truck??

Would it be worth even messing with the 305 /700r4?

I am not a fan of this combo eather but i have a truck that i have been trying to seel and it has thease in it. so for now this is what i have to work with. Also any parts from the 85 i want. is it worth taking the colum and the power steering.
I guess what i am asking is how hard would this swap be?
What would be involved?

Also what are my options for a bed?

Thanks