Price, condition & intended use determine all. If it is running & you want something to knock around & haul stuff, get it but don't pay a lot. Modern electronics are expensive. Just ask anyone that drives a 24V Cummins as in "how many miles on the VP?"

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.