The strength of this model comes from the tightness of the fit with your cabinet, if you don't want it to take it the full size of your cabinet I would suggest adding more legs to the fusion360 model.

The plate is made from 3 pieces, the legs are separate pieces as well and for each leg there is an additional connector to connect it to the plate. Everything can simply be press-fit together, but you can always use a bit of glue to strengthen the connections.

I suggest to print each plate flat and facing down to take advantage of your baseplate's texture and to have the nicest face up in the end. You will also need supports for the plate's horizontal connectors.

While initially thought as of a spice cabinet, this model can of course also be used to organize other sorts of cabinets.