For functional sturdy furniture like this, if you are OK with the look, you can make the base/frame from aluminium 80/20 extrusions (the kind with t-slots and all kinds of standard brackets etc for fastening them together). Misumi has a simple CAD interface to design a complete unit, and this generates a single part number for you to purchase everything cut to length, with holes if needed, and all required accessories and fasteners to assemble it. You can easily add a wooden countertop or shelves if desired.

It's not very cheap but it's infinitely configurable (unlike Ikea hacks) and doesn't require much skill (unlike building from wood at least if you want it to look OK).