I bought a Les Paul bass Tune-O-Matic bridge on Ebay. It turned out to have the wrong string spacing for my project.
Then I tried to find nylon saddles just like the ones on the original two point aka "Evertilt".
But they turn out to be as rare as hens teeth...
So I had to think of something else.
I realised that the bridge on my BaCHbird had a bridge very similar to what I had in mind. And more important: with un-notched saddles!
Traded the Tune-O-Matic bridge for a BaCH bridge with notched saddles with Peter (from the Tractor and Jazzbird).
Put the notched BaCH bridge on my BaCHbird.
And then took my own BaCH bridge and filed the notches in the right place for my desired string spacing.