I’ll counter
@DiscoDavis, as daily D1 driver who sold a ‘14 FJ to get into a ‘99 D1.
A D1 is magnificently simple to keep on the road. I purchased mine for $800 and assumed it needed EVERYTHING I could poss replace on it. I put several weeks of time into changing all the fluids, rebuilt both axles including brakes, rebuilt both driveshafts, replaced every suspension bushing and all shocks, all the rod ends, new tires, aligned it, and replacing all the engine’s hoses, belts, gaskets, and ignition components, and O2 sensors.
Around 35 days from limping it home I drove it to Tobermory, Ontario(1600 miles round trip) it averaged 16mpg on the trip which is only .2 mpg worse than the 14 year newer FJ it replaced. To register in my county/state it has to have the check engine light off, so getting it running in good order was top priority so I could get tags on it. It has been a phenomenal daily driver. The interior looks hammered, but the factory radio, heat, AC, heated seats, and controls all function regardless of appearance. I’ve put 30k miles on it so far and am planning on many, many more.