We did ours. House is 35 years old and it was the original shower and everything was in bad shape.
My wife and I did it all...tear out to studs and slab...replaced some rotten studs and plate caused by leaking shower...Hardie backer on the walls...poured new shower pan/curb and tiled everything....ripped off old wallpaper and textured and painted and added a beadboard wainscot....new ceramic wood plank tile floor and new chair height toilet...new shower door installed by Lowe's... we assembled and installed IKEA double bowl vanity with matching medicine cabinet, which we love....new lighting and hardware and Lutron dimmers and switches and plug.
We started working on it towards the end of summer, I skipped a couple of weekends to go fishing but we pretty much worked steadily on it until the holidays. At that time we decided we didn't want the mess and the added stress and work that Thanksgiving and Christmas brings. Finally made the finial push and got it finished the first week of June. When we started, I figured about five or six weekends. The whole thing was a lot more than what I had originally envisioned. We had tiled the hall bathtub surround and we also did the backsplash in the kitchen, so with the help of You Tube and Grout Scout, we felt we knew what we were doing pretty good.
Several boo boos

.... The one that drives me most crazy is the little puddle about the size of my hand, right next to the drain that I have to squeegee every time I get out of the shower.

Our wall tile is less than perfect...grout lines on bottom courses don't align with upper courses. The result of two people working together and not paying attention to what the other is doing.

I got in a groove setting the wall tile and completely forgot to set the soap dish until too late.

The Lowe's installer told me that if the wall had been another ¼" out of square he wouldn't have been able to install the glass shower door.

Just as I was finishing up, I shot a nail baseboard nail and hit the water supply for the toilet...that took the plumber coming over and me pulling back glued and nailed wainscot paneling.
For two old Boomers in our late 60s, I think we did alright. I nearly cost me a divorce but we saved thousands.
17F80369-7553-498F-AB4D-0F5A4247CDC7.JPG23FB58D3-A53D-47D5-B2D1-788A7DDF80C9.JPG
I would be embarrassed to show the before pictures.
