Are you sure you need a replating job? Depending on the size and placement of the scoring, it may be nothing. I've got a couple of scores in my barrel but since they are not on the compression side of the piston rings / cylinder, they don't affect anything. Mine were probably caused by sharp edges off the ports from the plating process that broke or flaked off. My engine compression was unaffected and I've ridden several hundred miles this way without problems. If you aren't sure, have your local shop look at the barrel and advise you on the seriousness of the scoring.
Also, you are going to love the RB mods. They kick!