Wichit Sirichote Microprocessor Kit Stackable Trays

have four microprocessor development kits from prof. Wichit Sirichote. For MOS6502, MC6802, MC6809 and Zilog Z80.
They are really cool, but storage has been a priblem.
I designed a stackable 3D printed base for them.
Please note that there are twodifferent designs:
- Z80, 6502 and 6802.
- 6809
I ignore if the other models from Sirichote (8080, 8085 or Z180) will fit in any of these.