Bathroom challenges

Bathtub replacement.. in thinking stage. As in, we need to figure out how to do it right.

A tight fit.

Crawl space work. Looks fun, no? This is an incomplete shot of the "as is" plumbing in the side attic.  Steve the plumber questioned whether the knob and tube wiring he found running next to and on this mess was live. Good lord I hope not. That is not on my to-do list! 

Plumbing detail we have to move.  Steve is going to move the whole works and make it accessible to the crawl space, so if there is a problem, we don't have to tear out our bathtub surround.  

Our new tub is exactly replacing our old one, albeit with the faucet on the other side.  See that wood lip on the left side...part of the tub frame ?  I did not want the drop in tub look with the marble or tile rim, I wanted a smooth non-fussy look on the side.  But I have to have a little lip, so need to find some sort of tile that will cover that, and look good on the exterior edge. There are lots of thin tiles, but they are usually not finished on the side.  In the back of my mind I am also concerned about weight on a non-reinforced floor. But hey, they put in a tub for 20 years that didn't go through the ceiling, why would mine?