50mm string spacing on LP bridge/tailpiece

Sarge

Good morrow fine people.

just bought another Westbury Standard project sans bridge/tailpiece. 
the originals had a 50mm spacing for both, with what I think is the nashville style bridge post, 4mm screwed direct into the body style. 

I've done a fair amount of searching but come up barren. 
Can any good soul point me in the direction of a suitable pair?
thanks. 

Sarge

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