Hey Mark,
In seem why you think this is a street ell instead of a closet bend, The curve's too close isn't it" I thought it was a closet bend with the stub up cut too short, but hey! A inch and as half of stock, I say it's worth picking up a inside flange and seeing how it fits,. I'd settle for a 1.5" glue joint if it was tight. I'd do that before I ripped up the slab and replaced the ell, And those are my thoughts. Regards, Tom