My son is building a 77 K5 from out of state that is a bit of a rust bucket. Most of the rust was in the rockers and was removed with a "boat side" project. The only remaining rust of any consequence is around the rear fender lips. These we had planned on cutting out and grafting in a new "lip" made from 1.75" roll bar material. However, the rust damager extended well beyond where this tube would fit so some sheet metal work was on the docket... Today my son was given an 88 rolling chassis with a fairly clean SW tub having NO rust and in very good condition. Only bad parts are a chopped up dash frame, some holes chopped in inner bed sides for speakers, and some minor holes chopped into the fire wall. I was told their is a stress crack in the front floor boards but have not verified it. I know the two tubs have different transitions between the cab and bed, and different mounts at that location. The 88 has the rear foot well and mounts outside the frame, the 77 has no foot well and tall mounts inside the frame. Now I'm left trying to figure out what to do. There are lots of pros/cons to the various options. 1) Cut loose and graft on the bed side skins. This fixes most of the cosmetic problems, and eliminates the cut speaker holes on the 88 bed sides. Still leaves some minor rust on the inner fenders and the inner med sides. Probably the easiest solution though. 2) Graft on the complete bed sides. This can be a pain due to the multi-layer b-pillar in the half cabs. It’s difficult to maintain the structural integrity of the pseudo-rollbar. More work than skins, but gets rid of some non-perforating inner surface rust, but leaves us patching the speaker holes and dealing with floor differences. 3) Replace the entire top-n-tail clip. Cut at the a-pillars (windshield post) and at the back of the cab area (behind seats, saves most of our boat-side work). Graft in the 88 tail clip. Keeps the boat-sides and the 77 VIN for smog purposes. Also gets the rear foot well, but it would need to be channeled around the frame. Lots of work, but probably the single best solution. This 88 tub is SO clean! Also requires modifying/fabing outboard body mounts for the frame rails. Up side is it lets me reinforce the internal structure of the floor to better support the cage b-pillar at the same time I’m grafting in the top-n-tail. Than again, top notch quality in the body is not what we are after. If it were, we would not have started with a rust bucket. What we are ultimately after is something that looks “cool” for him to drive to school/work/dates but also have fun playing with and not worry if he slips into a rock wall. So I’m reluctant to put that much into it… Anyone who has combined these different tubs have any insight to offer that might aid my decision? FWIW, I do have the skill/knowledge/experience to do any of these three, I ran a frame machine and rebuilt totals for several years. It’s the *time* that is questionable.