Ikea Lack printer enclosure bracket, CHEAP AND STRONG

Concept here is in the title: I *LOVE* the design from the most popular ikea lack concept... which incidentally also increases the height available to put the printer into.
I just cannot bear to go through a 5+ hours print, and 40grams of PLA... for EACH support.
Given that amount of resources, I would prefer to just saw a piece of wood to measure, or buy 90° metal brackets from the local hardware store and fashion a combo of them to raise the level...

So, enter my design. Ikea Lack gives 4