That is the trouble with using eBay to find a decent junk razor to practice on. I'd steer clear of eBay until you know what to look for when assessing a straight razor's condition. Even for just the honing part most will need far more than just a touching up on a finishing hone to be shave ready again. More than likely they will need a full bevel reset with chip removal a possibility too. That would entail a full set of hones to do from bevel setter to finish hone.Good advice, I'd been thinking about that but trouble is finding something that's cheap and not a complete restoration job? I've looked on eBay and most of what I can see are very rusty. How do you find something that's worth bothering with?
You may be able to find one to meet your needs on the forum buy and sell.
Bob