Hello and welcome,
I just have to ask
why not measure your fork legs? Anyway... there are long threads about this and they are easy to find (we're not FB). One key word could be "Swatt" which was a popular aftermarket manufacturer of clip on with risers. Discontinued for years. Maybe Woodcraft Tech still have theirs.
Clip ons on a 796 cause some clearance issues. You'll need to space the instruments out a little. DesmoWorld made(/make?) brackets for this. "796" and "clip ons" will be the search words here in our forum, I assume.