Hello,I have a cheap Epiphone Les Paul special in black that I got like 20 years ago. I’m looking to repaint and upgrade the hardware. I’m not so handy so in my research I am seeing that I can sand it with 800 grit sandpaper. Would I be sanding it all the way to the wood or just till the finish is dull? The new color I’d like to repaint it is TV yellow. Thank for the advice.