Nice mods. I'm looking at doing something similar to your drawer for all my cutters, spare mandrels and gears.
Do you have more detailed photos of the drawer?
Did you raised the Wizard on riser blocks to accommodate the drawer?
The Wizard is in its original position mounted with 1" aluminium angle.
I don't think you can get the mandrels to fit in the space, where I put the drawer.
Will get a close up shot of the drawer, which is made from 3 ply with 3 spaces (2 small & 1 large to take the depth gage) as is the case around it from 1/8" (3 mm) thick, with a cut out D for a finger pull.
There is going to be another box assembly underneath it all, to take the Dremel and Makita trimmer, everything will then be in the one place.
I'm still learning to submit/edit photos, so my apologies for those of us, that have older/tired eyes.
Regards and Thanks for the comments,
Kryn