Matt - I was lucky enough to get in on this run as well. I live in CT about 20 mins from Brian's Guitars so I'm fortunate enough to visit there regularly and the place is like a guitar museum. Really cool shop with a ton of great stuff. I went with:
Gotoh vintage locking tuners (drop-in replacement, and better than the PRS Phase III in my opinion)
Gibson Burstbucker 1 & 2 pickup set
PRS SE non-adjustable stoptail bridge.
Macassar Ebony pickup rings and matching truss rod cover
Switchcraft pickup switch with matching wood tip.
The guitar is fantastic. I have a 2017 Trampas Green Zach Myers that's undergone similar mods, and they're such great guitars. I bought a used 2019 McCarty 594 last year and I'm not even sure I would say it's a "better" guitar.