I was always under the impression that the throw ratios between Shimano and Sram were different, and would therefore make cross compatibility impossible, but that may be old knowledge. I would also look into a BikeYoke yoke to be able to replace the rear shock. If memory serves, replacing the yoke also bumps travel up by 5mm. The camber also is the same front triangle as a same gen stump jumper, so if you can find the back end of a 2014-2016 stumpy you could bump travel further as long as you get a longer stroke shock.
Joined April 20, 2018