I've got the EuroArms 1803 Harpers Ferry. They sell for about $1000 from Dixie. It's a 54 with shallow rifleing. Shoots good with not too heavy loads. I've shot it with 85 grs of FFFg Goex accurately. I picked it up at a pawn shop in NC a few years ago for $165 unfired, the guy ddn't even know what it was. The frizzen sparks very good and doesn't eat flints. If it's a EuroArms, I would recommend it. I'm not familiar with any other manufactures. Like has been said, it's probably worth $200 just for the parts. JMHO
Rick