not a case, but I built a ventilated surround/stand for vintage tube equipment
New Jersey Hardwoods, Plainfield, NJ made and finished the pieces for me from my drawings and finish samples, I assembled them with parts from Amazon
full description, many photos here
https://www.audiogon.com/systems/9703
Can stack up to 100 lbs on top, the back is fully open for access, and the lower unit can slide out without moving the item on top
I’m about to sell my Fisher 500C Receiver, no case, I think I’ll include a surround/stand with it.

