Metal chrome pickup rings?

I bought some a few months ago from a seller on Reverb. He had some for flat- top and arched top guitars, like LPs. The seller was Vision Guitar.

 

eBay or Reverb. Maybe even Etsy.

 

I tried for a long time to find some but Found them nowhere!
I'm so sick of the plastic Rings as they always break and this is something i can't live with on my electromatic where the pickups are directly mounted to the ring.
They even broke on a guitar of a good friend while he was on Tour.....
So i asked many many people if they would custom build some for me and it always was either no or way too expensive (someone asked 400€ for 2 rings).
I was so frustrated that i even contemplated glueing in extra wood into my electromatic so i could get some traditional mount pickups.
But then i Found someone Who builds custom guitar parts at reasonable prices in indonesia and got him to build tv jones english mount rings out of Metal.
I haven't gotten around to install them yet but have to say they look very good but not perfect

 

Had to Order atleast 10 rings so i ordered 10 and sold the ones i didn't need.

To be honest the only Reason why i didn't install mine yet is because i don't know how to measure the height on my pickups as they are right now.
I would like to Set the pickup height the same with the new Rings but i'm having trouble measuring and stuff

 

For posterity, GFS GF-tron rings worked well when I converted my RC320 to english mount TVJ Classic/Classic +:
https://www.guitarfetish.com/Chrome...-Rings-matching-pair-with-screws_p_33499.html

The standard HB size from them have worked well for me w/ HB size pickups in the past but they seem to be easier to find generally.

 

Has anyone ever tried these on an electromatic?

 

Based on previous experience, the stock Electromatic ring mounting holes usually seem to be a tiny bit narrower (or sometimes wider) spacing than the standard HB rings so you have to start them in at a slight angle but they straighten out as you screw them in. Some of them have been an exact fit though so probably safest to measure the spacing of the holes on the specific guitar you're working w/.

Here's the advertised dimensions from GFS: