Ford 7.3 diesel around here go for top dollar.
We have 2- F250 and 1-F350 ( all 2000), 200,000+ on each of them. If it is below 50 degree, just plug them in for a hour and they start right up.
All have over 200,000 miles on them.
The one with the 6 speed gets 17-18 mpg and I have only replaced the water pump, starter and clutch.
Did a 1001 mile run in 18 hours with it last year and would do it tomorrow, if I need to.
Took the F350, with auto, 150 miles today to get a new tractor. sil was driving, first time pulling a load. After a few miles coming home, I told him to take it to 75+ mph, not the 60 he was driving, so we could get home.
And, after 2 hours in the seat of my new TYM 574 this afternoon, I like it better than my TYM 754, that I have put over 900 hours on, in the last 5 years.
Plan on sq baling 5000+ bales this year and the TYM 574 will be the tedder/ rake tractor, plus will do most of the picking up the bales, with a bale sweep.
The 7.3 diesel's will be moving all the equipment and hay around this year.