I've seen an Ipe/boo English longbow made by Chris Boyton which is beautiful and, because of strength of Ipe and boo, is so narrow and light it's hard to believe it's 70lb.
That would easily make a 100/120 bow. English longbows here are usually self bow Yew but there are very many variations. Laminated are probably as popular Hickory/lemonwood/locust I've seen one from Elm, Hawthorn, English Oak (but it broke so don't use it!), I think almost any combo of laminations would do.
I suppose your Osage would be original for a selfbow English longbow-ever been done?