Here's a thread on CL that btwanky started. some good info on wheel repair and touch up.
http://www.clublexus.com/forums/is-f/401649-anyone-who-has-got-curb-rash-got-a-cheap-solution.html
http://www.clublexus.com/forums/is-f/401649-anyone-who-has-got-curb-rash-got-a-cheap-solution.html