I have finished the BR-9! Thanks to all for their help!
As bought:
The husk came with the original nut and bridge making this rebuild a lot easier to so.
The pickup screw holes lined up perfectly for a P-90.
It's a Type 2 - Gloss ivory paint with the P-90 pickup (1951-1954). I'm picking 1952 for it's birth year (same as mine) !
Here she is now:
The tuners I used are Kluson new ones model KD-3P, Kluson 3 On A Plate Deluxe Series Tuning Machines. I got the nickle ones with metal Butterfly buttons as I prefer them over the original small oval buttons.
https://www.kluson.com/kluson-3-on-a-pl ... tails.html
As bought:
New tuners installed:
The tuners fit perfectly - all screw holes lined up perfectly.
I bought George's unfinished pickguard (Jack Hanson's design - hope you don't mind!) and sent it to Tony Dudzik Pickguardian and had him make a new one out of 3-ply cream pearloid material.
It fits a P90 perfectly. I had Tony make me TWO as I am thinking about getting another BR-9

.
Yes, those are genuine cream original BR-9 knobs. A couple of weeks ago they popped up on eBay and I grabbed them. Expensive yes, but I love them!
I found a couple of wiring diagrams for the BR-9 lap steel. None of them showed a bridge ground wire. I added one. Pots are CTS solid shaft 500K audio taper, cap is a 0.022nf
The pickup is Jerry Sentell LS5 Tennessee Honey. I asked Jerry to make it with a cream cover and he did.
https://www.sentellpickups.net/steel
I love this pickup!
I have the BR-9 set up with OPEN D tuning (L2H):
1 5 1 3 5 1
Here are the strings that I used:
The #6 low D string is a 0.074" which is huge. It would not fit through the tuner post hole. I used a 5/64" (0.078125") drill bit to open the hole just enough to let the 0.074" string fit. Works like a charm.
I am having a hard time putting this guitar down! It's a keeper!
So, another guitar husk is rescued and brought back to life. It should last another 70 years.