a friend of mine wants me to build him a bow for his son and one for his grand son for Christmas.what kind of board/grain would be best?i am thinking 1 1/2 wide 67-68 inches long and 45 lbs and he other 55-56 inchs long 1 inch wide 30 lbs.3 layers of some kinda backing.like canvas.im going with a d bow.some type of indian designe.maby charokee.would it be safe to leave it un backed,ive made a hick board bow before butthat was 10 years ago.it was cool as heck.and it wasn't backed.give me some plans or ideas.