I had a very good result going from Zavfino's Fusion RCA to Fusion XLR from my phono stage to hybrid integrated. Under $400 delivered.
Using the same cable allowed me to really hear the difference between single-ended and balanced, which was huge.
FWIW, they only sell direct and have skinny margins, so my guess is these would be 3-4 times the cost if they went through normal distributor-to-retailer channels.
(If money is no object then you could look at the Silver Dart XLRs for around $1,600)