As I was wandering through the Blogs of War site I found this.
Looks like Allan Wright has a laser cutter business. Currently he has a few products and does custom work also. The bases below use standard fender washers. This is great as the movement tray from England are 25mm while the standard 1 inch washer is 25.7.. Now I have a source in the U.S.
Here is the link to his business: