So I have a chance to buy a Super Apache 3 pt hitch chipper shredder. It comes with drive shaft and 2 different size screens. It is in pretty good shape and I don't think it has had much wood run through it. The owner is a older guy who ran a small greenhouse operation up untill 5 years ago when he retired. the chipper was used mostly to mulch and mix loam and organic fertilizer (manure) together for the pots. It is my understanding that WW Grinder who made this went out of bussiness around 15 years ago. The owner a custermer of mine said make him a offer, He wants to move soon. What do you guys think would be a fair offer. I just did 300 dollars worth of work for him , would I be lowballing him to do a trade off. Thank you for your imputs.