Hi and welcome,
If I was spending that sort of money I would buy a nice vintage razor, but that's not to say that the next person wouldn't buy a brand new, really depends what you like.
I would be wary of eBay, because some people will say what they think needs to be heard to get a sale. If you are going that route, get some good pictures of both sides of the whole razor, and post them here, you will get good advice, or try and find a mentor who might be able to help you with your potential buys.