You can just turn the linkage round, but I always prefer to use a lever straight off the spline.
Q/Shifter wise there are a few out there, I had a Techtronics/JHP race shift on my 999 but it wasn't cheap, you might have issues with the loom being a CAN bus on the 749/999
I'd give JHP a call and see what options are available, note I ran a seperate PCIII also
Threaded Mode