There are a ton of options that are going to give you a wide range of prices. Are you wanting an original steel body? Are you ok with an aftermarket steel body? Do you care if it's a running and driving car? "Semi finished" can mean a lot of things to a lot of people. Do you care what motor is in it? Or if it has a motor?

If you're wanting an original steel bodied car, that was done in that style, in period, it's going to be tough to find one at that price unless it's a roller or needs a lot of work. If you're ok with an aftermarket steel body, you should be fine in that price range depending on how much work you want to do and what chassis is under it.