We made some modifications to our head and combo chassis. Improvements we think!
Here are the basic changes:

Two extra holes in head for tubes (more options incl. reverb, 36W, 6V6 with minor mods);

One extra hole in combo for tube (more options incl. reverb, gain stage etc.;

Caps provided to cover unused tube holes;

Can cap moved to front of chassis (cleaner wiring);

Moved board towards input end (quiet, more direct wiring);

Impedance switch in Combo;

IEC connector in Combo;

A few minor changes but No panel changes
Here's a pic of the head chassis:
