Although he is having some trouble with getting 25 and 50 lb limbs in stock for it, you might take a look at Newberry's Spike. It is 34.5 inches long and a whole lot cheaper than the AMS. He told me last week that he has 40 lb limbs in stock right now, which is just about perfect for bowfishing on a compound, since you can adjust them down 10 or 15. Ask for the "Spike Cam" and you'll have a no-let off cam like the AMS and FishHawk. In fact, it was designed at first for bowfishing, but he is putting out the other limbs for youth bows. He can get it coated in just about any color you like, including blue:
http://www.newberrybows.com/Spike.html