Well this is what we are here for. Start sharing pics and the fellas here will happily guide you.
Some quick things, mothers mag and aluminum polish, old tooth brush, wd40 and 0000 steel wool will all get you started polishing and cleaning these up. If you share pics of all 13 it will help us help you. I would advise you hold off on the one blade you shared until you build a bit of a skill set. Start with one that doesn't have the gold on the blade.
Start posting them in the show and tell area or restoration/ customs thread. It will get you more exposure and help