Custom Phono interconnect build-out shops or vendors?

Triode Wire Labs does plenty of one-off wires of all sorts.

Check the link I gave you in the first answer, Frank at Signal Cable will give you the best value for money, really doubt you can find anything better, custom lengths for all his silver phono cables and connectors of your choice (XLR if needed).

I’ve tried routine internet searches and mostly came up dry. Hence, my phrasing of custom, as in made to order. One Audiogon vendor made such cables to order about 10 years ago. I appreciate everyone’s input. Awesome. TY. 

How can any one of us say that his recommended cable company gives "the best value for money", unless of course you've tried all the others and compared similar cables from each?  Which I doubt is the case.

look on the Audio Art web site.

They hand make their cables and are actually quite nice when I've compared them to much more expensive cables.

they are my go-to cables now.  I just bought a DIN to XLR  phono cable from them recently which blows away the cable I used to have there.

enjoy