Your '80 should have Ford lettering on the hood and the '85 will have the famous blue oval emblem in the centre of the grille.
Many 'purists' wouldn't care for that but I say it's your truck, enjoy it as you will!
Slide v/s pin locks on the door cards are functionally the same.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.