Bizarre! Did you try rotating it (whilst listening) from position 1 to position 2 in your photos? How you thinking about achieving the 'tilted' position whilst still making sure it is structurally strong and wont stress the chassis? I'd be concerned about damage to the aluminium chassis around the screw hole locations.
wow, that's impressive (and saves the $80 etc for a template i paid).
You'll use a template flush router bit ? How do you control the depth? Do post pix when you're doing it!
The head and cab design look awesome! Can't wait to see more!
Metal film resistors have low noise and the input gridstopper is most important as signal levels are still low.
Grid stoppers form a low pass filter with the Miller capacitance of the tube. Normally input grid stoppers are chosen to have no influence in the audible range.