Yeah, basically you can do this any way you want that works. My first 10 or 12 bows were bamboo backed bamboo flooring bows or exotic hardwood bows made like this. Most of these will be backed or laminated limbs, but you can carve limbs from billets, just like you would a selfbow. Decent epoxy, Resorcinol, Titebond II or III all work. Bamboo, hickory, elm surface wood, ash, maple, and white oak make the best backings. Grain alignment is very important on backings. You still need to work in fadeouts beyond where the limbs attach, and glued on "half" risers or handle block-looking pieces will work ok here. Don't make them too extreme (wild reflex or recurves) or too short. If they bolt on, you may need front overlays to protect the limbs from the hardware. Make sure your hardware is very strong and well seated.