I have two M170's. I can tell you they are hard to find parts for. Seats, stretcher brackets, spare tire bracket and any ambulance gear is tough. Bows can be had from Ron Fitzgerald parts (G503.com). The recent M170 inquiries are all looking for seats. I have never heard of anyone making the seats and others have asked. I will say that since I bought mine in 2007 I have seen all parts occasionally pop up on ebay, willysmjeeps, G503.com and others. Brentmullins in texas has rear drive shafts, exhaust pipes, parking brake cables and wiring harnesses. He periodically comes up with stuff. armyjeepparts comes up with stuff also. midwest mil has M170 gas tank senders. I have tool box lids for the wheel wells, and a windshield frame. I buy what pops up and I can afford as spares and I have no spares so that ought to tell you something.