Relining a bathtub?

[Mitch Kronowit]

Does anybody have any experience with having this done (no, I don't think it's a DIY job)?

One of the bathtubs in a rental home has a number of hairline cracks all over the surface. It was actually cracked by a very heavy tenant and patched, but the entire tub appears to have had its strength compromised. I don't believe a simple refinishing job will do the trick and I would like to avoid the expense of having the entire thing ripped out and replaced. Dropping in a form fitting acrylic shell sounds like it would fit the bill nicely.

Any advice? Thanks.