Okay so I am a beginner to straight razor shaving in general and I want to learn how to hone. Now I'm young, and can't afford a real expensive stone, but I am going to an antique shop and might look for an old razor to practice honing, I just need a honing stone. Please help me out, I just need to know a good one to get the information on how to start honing I can start looking about later.

Thanks!