It took 4 months but its done and plays great. Many hiccups along the way:
Managed to loose the neck mounting screws
Marred the finished back pounding the ferules in
Destroyed a pot pressing too hard on the speed knob trying to seat (saw the tip of applying counter pressure from the back too late)
Bent up a number of pickup springs before chopping about 1/3 off
After a couple months in my climate and the finishing, the neck ended up with way too much relief (before attaching). It took 7 quarter turns of the heel truss rod (each stiffer than the last) to get it dead flat where I wanted it. It has subsequently stayed that way under string tension. Whew.
Issues with the hipshot bridge detailed in this thread :
https://unofficialwarmoth.com/threads/notes-on-hipshot-hardtail-bridge-install.38064/
Highest possible recommendation for the hipshot locking tuners. No screws needed, their clever design locks them rock solid without the anxiety of drilling those holes in the headstock. And the locking bracket looks fine, not at all clunky/kludgy.
I was hopeful that the Seymore Duncan P90 set would be reverse wound (the website doesn't say one way or another) but they are; the pickup hum vanishes in the middle switch position.
The finishing went smoothly, Shellac on the top and headstock, Truoil on the rest (4 coats on the back of the neck, 8 coats everywhere else). Truoil is amazing stuff.
Wooden knobs with abalone markers (matching fret markers) came from Ebay, guy hand makes some really items