Why not just a wall mount and filament holder in one? yes, that's exactly what I thought and just designed one..

The AMS sits securely on the holder and you can store up to 5 filament spools underneath

The whole thing is held on the wall by 2 brackets. How come?

1. Simply because I already have the system from Repkord (look at the great system) on the wall.
2. It's easier to print without a wall mount

I have created a version that works for both versions of the AMS that I have. One has 3 slots, the other had 5.

However, I know that there are at least 3 versions.

Please make sure it fits, I made a special test print on plate 4 in the profile so that you can test it

Material: PETG or ABS or similar

The holes for the rods are 16mm, but 15mm should also work (can be clamped)