General Tile Discussion

We have to tear out and re-do our large shower in our Master Bath. The 12 x 24 ceramic tiles on the wall are loose, you can actually push them in, this is not even in an area of the shower that the water hits, which is confusing....and we have found that water is leaking through the subfloor into the crawlspace from somewhere on the pan area. The pan is a traditional packed cement/rubber liner type. We are not happy, and we will have to do the work due to costs. We are both in our 70's but fairly handy - still, whew, it's a lot of work. I have some experience with tile - but not on a shower project. My husband is handy with tools and capable of tackling the real heavy work. As I said, we will be tearing it out, and I like the idea of using the Tile Ready flat bottom pan, and am wondering if anyone in this group has tried the Wetwall product for solid shower walls, together with the TileReadi pan? Anyone with experience in this, I'd sure appreciate you sharing. Our home is only 10 years old (grrr!), and the shower is really over-sized (we will be making it smaller when we do this) Yikes! Thanks for any input (or encouraging words.) Sandra