Good luck with that....Evos seem to be the forgotten bastard son of the HD family. The only outfit I can think of that might be of help is Foghollow. Easy to find with an internet search.
I've been trying to find the nut that holds the old mechanical cable tripmeter reset to the inner fairing. Similar to the nut that would hold a toggle switch but larger in dia. No luck so far - hope yours is better.
I just dropped in to see what condition my condition was in.