This is where I'd start checking the bend to determine if I was going to add some static recurve or not. If it looks to me like I've got plenty of room to work with to make a decent bend at a decent weight I start steaming (personal preference, Osage takes dry heat pretty well), or if it looks like I goofed a little too much I might just reflex the whole thing a little to try to come out flat.
I'm slightly unorthodox, though. Yesterday I tillered a bow using a machete. Don't take anything I say as the approved method
I'd also draw and start filing the nocks, sanding away the profile lines, and rounding the edges of the back.