That's a real good price. I have one in .32 caliber and sure wouldn't sell it for that.
It's an especially good deal with the two locks. I have both locks for mine (percussion & flint). It's a simple matter to switch the gun from percussion to flint by changing the lock and replacing the drum & nipple with a touch hole liner. I shoot it in flintlock mode most of the time, especially on the range and when plinking, and sometimes switch it to caplock for squirrel hunting. Both of my locks are very reliable.
If you don't buy it, please PM me with the seller's contact info.