I'm with Del, thread is getting off track. Back to OP about selfbows.
I am still learning, only experience is with Osage, but like the starting point of 2x draw length +10%.
My shortest has been 63"ntn, 1-1/2" at fades,straight taper to 1/2" at tips,with draw length of 28".
Most of others have been 66" to 68". Not sure I can tell any performance difference between them. All of them around 50# draw weight.