Can still get plenty of 28.6 wiper seals and generally any o rings in there are readily available and not fork specific. Just be careful with brittle plastic bits!
Boys at bike monger got em
https://www.bikemonger.co.uk/tektro-front-cable-hanger-1277a-21563-p.asp?_=&variantid=22053&gclid=Cj0KCQjwhL6pBhDjARIsAGx8D5-popu5x6qTl_Tv4mSAnswdC61Pdp6DvQ1-F694qufSrjUFjsQjDgkaAlx2EALw_wcB