I did it, see the picture:
https://picasaweb.google.com/1111224...68023125912978

I don't know which model Renthal is that, I have it form my Husqvarna. It's a different shape than the stock and give extra 20 or 30 mm high.
It's ok for me but I am 1.85. About the risers I had it before on my Husky but the problem is they bend easy if you fall.