All that trim, bumpers and the vinyl top have to go. Unnecessary weight. LOL I had to do a lot of clean up work on the tilt fiberglass front clip and carefully welded in some metal around the back glass without removing.
I did his 71 3/4 ton Chevy truck too. Daily driver with 454. Things rust different in FL so I had to weld in a whole new roof with partial window posts on and still have the glass fit back in when done. That was fun. Cab corners, inner and outer rockers, lower front door post patch panels, bottom of doors and it was a camper special that came with hooks bolted into the bedsides in four places and had tons of holes in the bed rails from the many campers it had on it in it’s 40 years that I filled in with weld. I think I filled over 50 holes with weld. Straightened the bow in the tailgate. Lotta work and it came from the factory in black inside and out. Painted the white letters on the tailgate and then found out I could have bought decals for $7.00
His wife drove a 69 Camaro.
Here’s the 71 truck; https://route66custom.com/posts/1970-chevy-c20