JW Hawken, What's it worth?

What we have got is a replica of a JW Hawken Full stock Percussion. I know that the originals were only made for a few years. The barrel is from Green River Rifle Works in Roosevelt Utah. It has Long Slock triggers from Colorado. The stock is out of Maple. It has a 3 pc. buttplate, and an either 2 or 3 piece nose piece. What I need to know is how much it is worth, and if I were to sell it on Gunbroker, what category?