Its really hard to place a value on something like that because over on the Stovebolt forum there are many people every month that give 216's and 235's away for free in their Freebie Section. So the percieved value of them doesn't appear to be very high because of that. If you were able to see and hear it running, that could help for sure compared to an engine under a tarp or piece of plastic in a shed that's been there an unknown amount of time.....Good luck!