I put the CUCV bumpers on my '73. For a 80's truck they should be a complete bolt on. I had to trim the front frame horns and then welded the brackets to the frame. The rear is pretty much a bolt on, however you may have to drill some holes. There are a lot of bolts to attach the rear brackets to the frame. As there is a pintle hitch in the center of the bumper, I decided to leave it and mount the license plate on a separate lighted bracket (Factory GM for a non-OEM bumper truck).
To try to make the CUCV bumpers look more like they belong, I painted my bumpers a more civilian argent silver color with black accents (clevis mounts, pintle hitch, etc.).
To mount the drop hitch for a trailer ball, I used a 3/8" plate cut to approximately the shape of the step area below the pintle hitch, cut holes for the drop hitch and then sandwiched the bumper plate between the 3/8" plate and the drop hitch mounted with 1/2" bolts.
The main reason I went with the CUCV bumpers was for the heavy duty cleavis attachments. I also found with a little engineering, I could use the front attachments to attach a cradle mounted winch.
I originally bought the front and rear bumpers, brush guard and four clevises (?sp.) off a 1 1/4 ton truck (not sure of the nomenclature). I hit a deer and destroyed the front bumper, so I replaced it with one off a Blazer. I bought all of my bumpers from a 4-wheel drive shop in Arlington, Texas about 15 years ago. Other than one of the larger suppliers listed in the back of Peterson's 4-wheel & Off-Road, I really don't know of where you may be able to source them now. I'd say just keep your eyes open and especially watch for the military trucks at the off road shops and salvage yards in your area.
Here are some photos of the CUCV bumpers on a '73 GMC.
On either side of the front and rear bumper there are "cats eye" lights. I removed them from the front, the rear still has them.
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