Has anyone ever removed a plastic glued on tub surround?

I have a 3 piece surround that is in excellent shape, but I have to
remove the tub to do some structural repairs under it. There iw no
other way. The surround overlaps the metal flange at the top of the
porcelain metal tub, so the tub cant be removed without taking off the
surround on the walls. I'd like to save and reuse the surround if
possible, but that glue appears to be quite tight. (I was able to pry
back one corner). I'm wondering if there is a special tool or some glue
solvent?