That's coming along nicely Blocka.
As for "typical and conventional finishes used", that's pretty true of mass-produced factory guitars, but for BYO and small production builders, the products you used are very common.
The Benchtop Clear is just a type of varnish, but Cabot's doesn't say whether it's a polyurethane or not. Doesn't really matter, it's just that polyurethane can be called "varnish" but not all varnish is polyurethane. (clear as mud, right?)
Edit:
Just inquiring about the tape in the pickup and control cavities. What's its intended purpose? Is it just protection whilst you're finishing, or is it meant to be shielding? It looks like insulating tape to me, not like any shielding material I've seen before.