I am in the process of looking at D17s to buy.My area is a 100 mile radius of Springfield.Mo.In two day time on a business trip unrelated to this endevor I stopped at two dealerships along the highway.#1 Old Allis dealer,owner 72 years young would have talked all day,a large lot covered with Allis and Gleaner eguipment. Three D17s,ser one and twos.Priced from $5200-excellent shape (gas )but very bad tires .$4700 (diesel) bad sheet metal,bad tires,powerstering bad. $4500 (gas)smoked,bad powerstering,bad tires,bad sheet metal. All had add on 3pts. I left thinking all to high.
About 40 miles down the road JD dealer lot. One D17 Ser III,three new tires, good sheet metal, as sound a tractor as the $5200 one.Priced at $3500.
The moral of the story is look around. I didn't expect there were that many for sale within 500 miles.
I'm still going to look some more.