When you say it, that looks like a steel Modushop chassis with a new top plate and wooden side panels. Cheapest possible crap then...
The perf boards are just retarded. I mean why would you do that, there is no good way to mount the tube sockets compared to a proper pcb with large slots to securely mount them.
Ohhh and a RK27 volume control in a 12000€ amp? Are you fucking kidding me?