i got a stock one from a 75 it is a rust brown color vinyl, has a tear or 2, should be the same as the 73. i got some seat belts that will work but they are not from the blazer, they are from a ford pickup. i had both of them mounterd in my k5 before i started the cage.
if u want some pics pm me w/ your e-mail addy.
any how u can have them if u can figure out how to get them. i am 1 hour north of memphis, tn. i am in memphis 2 or 3 times a week though. i can ship forward air, but u will have to pay me for a pallet & some gas money, if we go that route.