I polished the whole engine swingarm, and every other aluminum part on my wifes trx250r. Like earlier stated. at least a few hundred in materials. Probably 50-60 hrs labor. Also did a cr500 a few years back. super dirty work. next time i will pay to have it done. Heres a pic of the 500, then one of my wifes trx. pics are not greatest quality, taken from old phones: