heres an ams retriever mount for crossbows. If you go with an ams retriever you won't need the float in the picture for carp. Unless your planning on shooting sharks, rays, ect you don't need the slotted reel. The standard would be fine. Go with 200 or 400 lb line. The 130 lb is real thin and doesn't grab as well in the wheels on the reel. I like the yellow muzzy 200 lb for carp. http://www.amsbowfishing.com/product_info.php?cPath=22&products_id=241