Dune cats are truly awesome but the last 5 years the price on used ones has dubbed even tripled in price. A really nice ones go from 3 to $4,000 depending on what state you live in. I have one in Texas that’s in good shape I would not take less than $2,000. Good luck with your quest. Small 3-wheeler’s (like a Tri-sport) work great for kids and might be a little easier to find