Your XX75s should take super nocks as long as they have the Super Uni bushing on the back end. If they do, any lighted nock company makes a lighted super nock. I shoot Nockturnals on my XX75 arrows out of my recurve.
Really? Your best bet is to call Lancaster Archery Supply, tell them the shaft size (there should be a number on the shaft other than XX75 like 2216 or 2219 or some 4 digit number). They'll be able to ship you exactly what you need and lighted nocks.