I have the 19/17 setup on my 990. When I got it I was doing mostly street and it was great! I have the K60 on the rear and it's ok in the dirt, but not great (the wheels). If you plan on moving back and forth you will have to get an adjustable side stand. I cut both my side stand and center stand.
You don't even want to know what the Gobbler is...
2007 KTM 990 Adventure
2 97 VFR's,
2004 ZX10 and 3 (yes 3) 2006 ZX10's