Dealer installed Warn winch on '71 GMC?

[Clanky]

Hey All,
New dude here. My name is Karl, from Roswell, NM. Before you ask:
Yes, that Roswell.
Yes, it did happen.
Yes, but only one.
No, New Mexico is in the United States. :-)
Ok, with that out of the way, I recently bought a fairly decent 1971 GMC K1500 that I plan on being my last truck as I much prefer the older trucks to newer. The guy I bought it from bought it from the original owner, who special ordered it from his dealer in Las Cruces, NM and upon arrival had the dealer install a Warn 8000lb winch. I'm not sure of all of this, so thought maybe you guys that are more familiar might recognize the winch setup as dealer installed or just some shop after the fact. From what I can tell the winch is early '70s.
Also, as you can see I'm missing the front right outside trim and also the trim around the right rear tail light if anyone might have one, missing clips too. Please let me know if you happen to have a decent spare.
Thanks much!