I have a bendy handle osage that is 7/8 wide and 36 inches long. Pulls about 55 lbs at 15 inches of draw. Maybe I need sinew to back it, it seems kinda wimpy.
If that's what you have in mind, you have enough for two bows!!! Mind you, as short as that bow is, I'd have to be locked in a phone booth in order to hit it with an arrow!
Go to a minimum of at least twice your draw length, add a couple extra inches for safety, and make her at least 1 1/8 in the handle if you got it. If not, add another couple inches and go with 1" wide in the handle.