87 tbi swap need info

[franky69c10]

i posted this in the engine and drivetain also..

ok i got a 87 chevy tbi 700r4 truck i wanna swap everything to my 1969 c10 swb, how hard is this to do, and what harness do i gotta take off the 87 to my 69 to make this work, and i wanna use my stock 69 cluster also, i plan to get a blazer tank in the back what fuel pump do i use..... sorry for all the question's im kind new at this... thanks

here are some pics of the truck, that ill be taking all the parts off.