The black 09 AmStd Precision I just got is a total player that I've fallen in love with, but one of the many previous owners attacked it with a Scotch Brite pad. The arm and beer gut contour and the side up there are scratched pretty good, as well as a smaller spot under the strings. I'd like to buff it out but I don't have an electric buffer. Is this something I'd need to fix with a buffer or can it be done by hand? Would anyone care to expound on the best way to do it? Appreciate it!