I have seen a device for people in your situation. It holds the bow just short of a full draw. If I am not mistaken you can pull the bow back with the help of your feet. If the bow is almost at full draw the poundage would be greatly decreased at this point probably allowing you to finish the draw at this point. If it is legal in your state I would pursue it. If you can't, go to the crossbow, Why miss out. After all, you have earned it.