Ehh.. I like to have metal around me and I wouldn't want to drive a Kart around Sebring unless I got paid lots of money.
I can pick up a late model 1.6L Miata for Spec Miata racing for about 2500..and most likely have it turned into a racer for under 5 grand. I can do 80% of the work my self.. I just have to have the time..right now I don't have it.
Besides I have fun...either crushing cones or just doing lap's at a road course. In all honesty I'd rather take out a sea of cones if I screw the pooch then hit a wall.

Cobra is that your Shifter Kart?? It's sweet looking!