Im thinking about buying my 1st spyder. I'm 5'10" and 215lbs. Occasionally want to take weekend long trips with my wife (passenger). She wont tell me what she weighs but i think us put together 450ish. Question is, I was really turned on by the selfleveling kit that comes on the limited, part#219400738. Is that good for two up or do i need the occasional 2-up shock part#219400739 or both? I plan on buying the spyder and then buying and installing the parts my self. The f3-T already comes with "adjustable rear air suspension". So is there a switch on the bars or is it a stop and get wreches out kinda deal? If it already has air ride then is that in place of the shock therefore not needing an upgade? Thanks in advance. I searched already and saw plenty of posts but i guess i need someone to explain it to me like as if i know nothing to start with