We have a Wizard riding mower that belonged to my father-in-law who passed away, it is in real good condition (needs a battery), all the writing on the mower still looks really good, we have someone that has inquired about purchasing it but we would like to know what it is worth. Thank you!

No idea, check Ebay or Craigslist. We do not price anything. IMHO- unless it is a collectors item, maybe $100. On my local CL, riding mowers start at $75