My Lefever Nitro Special was also under $300. Needed some stock work, which I did. Shoots great, and it's not too worn.
It's also a 16 Gauge. If you are on a budget, that's probably not something you want. But the balance and handling are great, much better than the old 12 Gauges out there IMO (including the Nitro Special in 12, and the 311).
That said, if you don't know what you're doing (as in have some familiarity with old shotguns and what's inside them) you probably will get nothing but junk for under $200. Actually, under $200, you will get junk.