This 80/20 Pro enclosure will probably cost around 4500+ including casters and hardware. Much easier to put together then wood, stronger, no warped pieces to deal with and is also easy to configure, add on to, and disassemble.
Things to consider the hardware and aluminum extrusions are very expensive, 30 day or more wait for your order to go through, and high shipping costs.
I recently over-built a very sturdy bottom cabinet out of 4x4’s with premium materials, with 3/4" plywood covered in white marker board Formica, and it was about half as expensive as the 80/20, 10 times more work and was very frustrating dealing with warped wood, trying to get things level and straight.
I will stick with the 80/20 from now on, very expensive, but it makes more sense to me. Can have this whole cabinet assembled in 10 hours solo. I spent about that much time just drilling pilot holes for all my lag bolts in the 4x4’s…
Dust and sound containment are a must for my situation so the expense is necessary.