Pop-up stopper for a 2" drain Ell

I have an older Kohler tub with a 2" Drain Elbow # 43096 and would like to convert the mechanical lever stopper to a pop-up stopper. I can only find 1.5" replacement pop-ups. Does anyone know of a source for a pop-up stopper that will fit the Kohler 2" drain ell? Also maybe a threaded adapter sleeve that reduces the ell to a 1.5" ? Looking for any answers that will not require me to cut into the wall. Thanks in advance.
Mike in Montana

Thus the problem when you own Kohler! However, check Watco and CS&B. There are reducer bushings to allow that drain to accept something like a lift and turn, or possibly a tip toe.

Thanks Jimbo. I'll check that out.
Born and raised in S.D.
Go Chargers!
Mike

I found nothing. Does Jimbo or anybody else have a solution? If so please include a link for the part I need.
Thanks
Mike

http://www.woodfordmfg.com/watco/index.html click on "product index", then scroll down on the left to "parts and accessories". click on "bushings"

Jimbo,
You are great to help me! Thanks - I found what I needed.
Mike