Been playing with it – minus a real speaker (using an 8 ohm public address speaker – it sucks).
So far I found that the solder joints attaching to the 1M pot covers were cold – causing intermittent loss of volume / tone control. Fortunately I got my new soldering iron in today and could crank it up to 750. I remember reading about that possibility.
I think next time I may pre-wire the tube sockets according to color code. Some are pretty tight like you mention Joewiley.
Some more fine tuning, shortening and routing of some of the PT wires and It’s cabinet time.