As its such a styalized ferris wheel I think you will be better off drawing out your own with CAD that way you can check that the trays won't hit each other as it revolves.
If you have a sheet metal option on your Cad the trays could be folded from a flat sheet
Also what happens when someone takes a big hand full of the ones thay like and the tray gets lighter as then the opposite heavy tray will always drop to teh bottom?