Thanks all for advice and encouragement. I learned a couple of things from this bow (my third) which had worm hole defects and imperfect tiller, too. Because it was very dense osage with thick rings, great late to early wood ratio, I thought I could get away with imperfect tiller. Wrong. I should have kept working it and accepted a lower draw weight. It had all kinds of prop twist and undulations. So I learned a lot about straightening wood.
I may go ahead and glue it, XL sinew patch it, and give it a full sinew wrap-around and fix the tiller and see if I can get it to hold together at 45# or so. It will be a bow with a story, but maybe not one I'd hunt deer with.
I don't want to get too sentimental with it. I'm finishing another osage bow with a nice deflex/reflex profile. It's a ridiculously small piece of wood, maximum 1 and 3/8" wide, bend through handle, 50" nock to nock. Right now it's at 60 pounds at 26" pull. I'll get some pix and post. Seems harder to shoot accurately than a long bow but is really zippy.
And I'm finishing my first hickory bow with a stiff handle, 1 and 3/4" wide at fades, gently flipped tips, 68" nock to nock, and drawing 50# at 28". This one is a shooter. I stuck a punky branch about and inch and a half in diameter in the ground on a hillside and took my first shots from 15 yards and busted that branch all to pieces with my new cane arrows. That made me a happy camper.