Thank you!
It turns out I can't get out of sanding, so what I'm doing now is sanding, scorching, rubbing back, and more sanding.
Mock build #2:
The phoenix is made from copper tape on a paper backing, since I haven't gotten my hands on a jeweller's saw yet (weirdly, Bunnings don't carry them...). I now have a vernier though, so I can order the correct mountings for the gemstones.
I decided that the pickup cavities were too shallow, so I deepened them (by hand!) by 2.3mm, and also opened up the wire channel a little:
...and after the most recent round of scorching & sanding tonight:
Now, unless my stains arrive tomorrow (today?), this is where it'll have to stay until the new year. I obviously don't want to start with the shellacking until I have the staining (and inlay) done.... although it's mighty tempting...