I believe I'd do it exactly the way you've laid it out on the floor there. I might glue in just a touch of reflex, but not very much. The reason I'd do an R/D is because heat bent working recurves sometimes loose their bend. Natural reflex like you have is likely to stay there. You can always heat bend a straight bow into a static recurve, but it may be awhile before you see that kind of natural matching reflex/deflex in billets again. But, at the end of the day it's your wood, you get to do what you want.
Love the staple, but I'm hoping it's under the bow limb since it is in the side of the stave. In the back it'd be no problem at all, but it in the side I'd be concerned about a split along that ring.
Good luck with it, that looks like really nice osage and I don't see the bug damage we get down here. Should make a great bow.
George