The closest thing I can find to that is the C3 forward post setup.
I do find that the bit forward that the XM already is, is MUCH easier for me to ride though compared to an 11-12 sled... so I can't see that kit being a bad thing for someone who prefers a vertical setup.
Here is a link to a previous thred with pics. I thought it looked like a verticle post. Maybe Iwas mistaken ... The lynx site showed horizontal like you said.
I thought Bret might have something. Ive been a Polaris guy my whole life but I decided to try something different and ordered a doo. I just am not a fan of of the horizontal steering.
And I'm not switching because Polaris has been bad for us, I just wanna try something new. I put over 3000 miles on my pro with very little issues and now almost 1000 on a Carls BB