Go with your plan of the summit paint. Don't roll paint on it. the last thing you want to be is the laughing stock of the autocross. if you have come this far take the extra step and do the paint your self. no matter how long its been it will look way better than a roller!!.
Good Luck
Google rustoleum or marine paint roll on. They can look awesome, but are labor intensive since paint is very dilute and requires multiple coats and sanding. The beauty is retouching is simple. I have seen some very good ones.
