Re: 1971 Allis chalmers, Hydro HB-212
Non-running will really hurt your sale price. I would at least throw some gas in and crank it over. most times, if it won't fire, the points just need a quick swipe of something to clean them.
These have declined a bit in recent years, but you're in a good market in IL, so I'm thinking $300-400 is the MAX, and it will take just the right buyer. Hydraulic lift might add $100-150.
I recently sold my HB-212 in great original condition (manual lift). It had rear lift and front and rear OEM lights, which kick in about $150 in value to a collector. I got $375, running and driving. Pretty disappointing, considering about 5 years ago, any nice HB would start around $800-900 and really nice ones were near $1500. We missed that bubble, my friend.