Ken brings up good points. However, if you are set on a supersport, you can always adjust the rider triangle to bring it to a reasonable compromise between sport & comfort.
Handlebars can be installed although that will cost some $$$, Heli Bars are popular options or you can install Convertibars which are pretty good too.
For the seat, there are many options but the most popular are Corbin & Sargent.
For the foot pegs, you can retrofit some Buell pegs or get Cycle Pirates 360 pegs that allow you to adjust however you want.
I have been down this road so I know how you feel. But note that it will take some effort to make a sports bike relatively comfy. Of course, now if you are 150 lb & are 90% muscle you can probably ride anything for any length of time.