64 dart. what to look for?

never got a hold of the guy went and put a deposit on the truck today gonna get it tommorow will post pics if interested. body extremly straight and clean. was a county school truck. bed has a little rust in it where the wood bolts down but easy fix. slant six was removed and a early 70s 318 engine and tranny and rear was installed. runs out great column shift collar broke so has a floor shift. needs paint and weather stripping but gonna leave it as is for a while. thanks for everyones imput.