If they make it handle well, and punch it to a 276cc then it doesnt need to be a 300.
The GSX-R250 needs to have USD forks like the KTM, multi adjustable rear shock, and come stock with a QS, and a basic electronics package
or use the tried and true and stone reliable drz 400 single motor....35 plus hp with decent midrange ...in a light weight SS proper chassis. come on suzuki...kick some lwt butt...lol
would love to see suzuki in the FIM 300 supersport fray. the gsxr 250 wouldn't cut it in FIM 300.