I’m not sure if there is anything here that adds to what has already been posted here but I have also been thinking about a table design for my second CNC router. A OneFinity Elite Woodworker will replace a smaller CNC.
I do bespoke designs for tooling/equipment etc. in Fusion 360. In addition to accommodating end joinery, pin-located extension(s) can be retrofitted to accommodate machining of small COTS enclosures and a possible rotary axis. It doesn’t (at least yet) address the tool storage and such requested by the OP but here are a couple of images of
what I have come up with so far FWIW.
