(Another) want to buy Hobie Kayak kart

I know there was just a post about it, but I would also like to buy a Hobie kart with the sand wheels. Anyone happen to have a used one? I told myself it'll be a cold day in hell before I spend $250 on a new one. But if I can't find a used one my hand might be forced. May also be doing a DIY one, but have read some horror stories about those breaking scupper holes and such. Hoping someone has one laying around that doesn't go on the sand often enough to justify owning one

I have used Wheel Ezz for years and have been really happy with them. I have the larger sized wheels, and have at times double stacked both mine and GF's kayaks without issue.  I can say mine are easily 10 years old and have never given me an issue.  I have a small cable I slip through the holes and lock them in the back of the truck.