Have you looked into TenPoints they have some really good package deals and the best cocking aid on the market.. although you could have an Accudraw system mounted on an Excaliber.. I would buy from a local proshop myself,, then you have someone to go to if you run into any problems.. you buy one online or off ebay you have to pay shipping back to whomever you got it from to have any isshues that come up fixed..
I have a TenPoint ProElite and have had no problems but if I do I can go right back to the proshop I got it from and they will fix it I did have an isshue with my case and they got me another one ,, and give me a couple of extra hats because I had isshues with the case. I would also want to be able to hold and shoot the Xbow I was getting .. the exact one I was getting,, my opinioin get it locally, one time of having to ship it back would pretty much eat up the $ you saved buying it off of ebay or online,, if you do buy it online get it from a reputible dealer..