Caster Mount (KIT) Question

[NWCC (Jonathan Jones)]

Here is the correct one and the mount for it…

Caster wheel alternatives

I’ve been using these casters from Amazon. You can get 4 of them for close to the price of one from McMaster Carr. I had to edit the mount just a touch but they fit great! If anyone wants the adjusted mount I will gladly post it. Edit to add the caster mount files…