That doesn't sound like a bad price. I paid just over 20k two years ago for 3410HST, FEL, 6' cutter and 6' rear blade, filled tires, the bucket was the round back HD, Ag tires and folding ROP's
In august I bought a used (311 hours) L3710 HST with FEL and Curtis soft cab plus heater for $17K. Absolutely no regrets buying used. Your price sounds good, mine was very good, I figure I got the cab for 50% of cost.