The Model 85 corresponds to one of the models shown in the brochure that is listed in earlier in this thread. I am no expert but 1963 sounds a little early to me, I think these bikes were produced from the mid-sixties until early seventies. I have 2 K&S Hornets. While restoring the first I found that there is not much in the way of original parts out there. I had to make most of mine. What parts are you lacking?