i second the idea of a little wider tray on the hull, and i assume build in foot holds?
another neat idea would be built in handholds on the rear of the ski... kind of a wishful thinking as it would make loading it a hell of alot easier onto the trailer and all
also slightly wide lip around the sides of it, so you can have some more fun if you have wide feet like me
also a nice fire extinguisher compartment like the old 650sx or the Kawi 750 had
ohh Bobby... don't forget we need to touch base about making a hood for her SXR
probably some other things i'm forgetting