And I mean like at the most rudimentary level. I’m a total newb and not handy at all. No woodworking experience since 8th grade shop class. But basically, I have an amp where I like the sound, and I want to convert it into a head to use with a separate 1x12 cab (in combo version it’s heavy as hell). It’s a Marshall AVT150. Id just buy a head, but the only ones I’m seeing online are $450, and that’s outrageous. The chassis measures 22 inches wide, 8 deep, and 4 high. There’d need to be a little more clearance because the transformer hangs down a bit. It bolts from the top so I’d have to drill some holes. Im talking like 4 boards nailed (or glued?) together, not trying to spend a lot or win any amp design competitions here. Anything I need to consider? Here’s what I’m working with.