Finally got the time to finish her, and the sound is every bit as good as you guys have claimed it to be!
I made the modes switchable by putting a toggle switch from the screens to either UL taps or through resistors to plates. Also put in a switch for feedback on/off. Didn't make sure everything would fit before drilling so the coupling caps had to go on their own VIP balcony... whoops. Chassis is the standard hammond aluminium 12"x8"x3".
The paint was done by wet sanding the chassis with 120, 240, 400 and finally 800 grit, then several layers of spray primer, paint and clear coating. Transformers same procedure except I only used 400 to get the clear coat off and used no primer.
I will listen to her for a while before I do any measurements on the actual performance. I did measure the power consumption though, loaded with KT88s the input effect is around 75W, with 6L6GCs it's around 60W.
Had a blast building this, the PCB made it super straight forward. Hats off to Shannon!