Brian, almost any wood will make a shootable bow. I have made them of hickory, oak, cedar, ash, osage, hop hornbeam, locust, yew, and dogwood.
A good bow wood for self bows has to have good tensile strength on the back of the bow as well as good compression strength on the belly. Osage and locust have both of these qualities. Hickory has these qualities also, but the moisture content has to be low in order for it to perform really well.
How expensive are the staves? There are few guys around here who would be interested in something new to try. Someone said yesterday that he needed to build another bow.
If you get close to Mebane, NC bring some by. I'd like to see it. We might even be able to do some trading.
Don Ward, Eagle's Flight Archery