I bought a retired diesel engineer for Kubota tractors out of his 20 year D24T hobby and got his car, special tools, green books, and a garage full of spare parts.
We just finished a 3,000 mile road trip to Washington in the 760 and it was great- absolutely everything on this car works like new (AC, cruise control, lights, etc.), it has a low-mileage factory crate D24T from Germany with 1-notch MLS head gasket (and various other later updates), a newly rebuilt M46 (swapped from ZF), and a new suspension/brakes (Bilstein HDs and new nivomats). It runs and drives exactly as I'd imagine a brand new 760GLE from the factory would.
I did have to replace the steering rack though out in the rain in Oregon as it suddenly failed without much warning, and I added an iPod input to the factory stereo.
iPod/aux sound input
My wife is "loving" the pile of D24T parts in front of the washing machine including 2 M46s, a complete D24T core, and another D24T short block.