For long time i wanted to get one of these helpful devices, to help me with restoring the multi-piece wheels i have, and will get in the future. The issue always was the price though, even if i found one for under €100, with the shipping and taxes from overseas it would be almost double :-/ So i thought it cant be that hard, and went to the home improvement store and few bits i thought i needed. Hardest part to get were the actual rollers on which the wheels will spin, they were quite expensive, but then i found a set on aliexpress for cheap and in various sizes, so I ordered those, and after that it was only question of the assembly. Which wasnt state of the art for me, since i dont have the tools or skills for this kind of a job :-D but it turned out okay, and most importantly it really works the way i needed it to.
Here is the seller with the rollers (actually conveyor belt rollers):
www.aliexpress.com/item/10050...
I bought 25x400mm, because i wanted 40cm so in the event i get a 12"+ wide wheel it would still work.