Here is the constant dilemma with the 60/62. Keep it Toyota and a real, actual Land Cruiser, with solid reliability and all the benefits of the original design, BUT be painfully (almost dangerously slow) in modern traffic and get 10mpg?
Or, have most of the original design, but with a modern drivetrain that has no problem keeping up with traffic, shaves a couple hundred pounds off the front end and almost doubles mpg’s. Brakes on the other hand…
I see you’re in Rock Springs. I-80 is a beast. While living in Denver and working in oil and gas, I spent sometime in Rock Springs, Evanston, and Cheyenne (as well as Vernal, Grand Juction, etc and traveled all around the WY/CO/NM region). If you’re local around RS, and have a modern vehicle to travel along I-80, then I’d go for the 1988 gray one. That’d be my choice overall, no matter what. If I wanted a Chevy drivetrain SUV, I’d buy a Suburban or a Tahoe. Nothing against the swaps, it’s just not for me. I wish it didn’t bother me as it is the best bang for the buck. I’m in Houston, so I’ve definitely considered this option.
If this will be used for anything more than local driving, go for the 1989 LS3 swap. You’d have to given the surrounding topography of CO and UT and the vehicle cruising speeds across Wyoming.
Also, just about any accident on I-80 in a 60/62 will be….bad.
Either route you go, make sure the chassis/undercarriage is protected with fluid film or ceramic coating, etc. so you don’t have a Flintstone’s mobile in a few seasons.