Welcome aboard Cgr41092. I don't know exactly your experience level but I can say this. Sharpening a straight razor is a completely different ball game from sharpening knives. Now with that said, you might put your location in so that maybe there might be a member here who may be of some help to you. Hopefully, someone will live close to you since some hands on training can be better. You can learn a lot on here though. If you haven't seen the Beginners Guide yet, that would be some good reading for you. That can be found in the library here. You also need to know what to look for when buying from an antique store, flea market, eBay & so on. You can learn that here too & also ask questions. There are many knowledgable members here so ask away. Please feel free to send me a pm if you have any questions. Great to have you here.
Good luck my friend.