wondering if you got anywhere with your search. Rox is a company that came to mind. they have these:
https://www.rockymountainatvmc.com/p...ndlebar-Risers
unless youre looking for something that will bolt on in place of your standard bar clamps, those would be my first choice that are universal. Should be able to do what you want with them. Another option may be to change the bars out.