Well first off thats way to much for that gun, second that gun has several built in problems.
You need to look around and find a good gun for a good price, I picked up a TC Omega Z5 for $150 a few tears a go on sale at walmart and a Triumph from a local dealer for 275 either of them is a good, reliable, high quality gun that will shoot with as good accuracy as any other muzzleloader on the market. Lee