We did some with one in Arizona. It’s subbed out to a contractor. They act as the middle man. You may be able to save some $$$ by getting three different bids by General contractors. GCs can usually do everything you want. More on reddit.com

I use sketchup. There’s a learning curve but once you know it, it’s easy More on reddit.com

We did. Work wasn't too bad, but pay attention. They didn't secure the subfloor correctly, so the first time we walked on teh new tile floor we could see it moving. We told them where to get the tile (we had purchased it) and they pulled it all up and laid an additional layer of plywood down. I also had to stop them from just tiling over an open junction box they found (the vanity had flipped from one wall to the other and the the previous owner (had to be him based on finished), an electrical contractor who owned his own company, had left live wires behind a fiberglass shower wall. We called in an electrician to fix it correctly. Basically, you'll get less experienced contractors, but HD/Lowes is weilding a big stick on your behalf (enough customer complaints and their business dries up). We think our contractors mostly did apartment maintenance; the floors & electrical were a bit alarming, but we caught it and were pretty happy with the results. If you aren't as aware of whats right, it might be better to stick with a more experienced contractor; though I've seen crappy work from them too. EDIT: I should note, we split the work, because I didn't want them messing with my Plaster (1876 house); they wanted to cover it all with 1/4 drywall, I didn't want to give up a 1/2" of space (2 wall) and have learned to love the solidity of old plaster More on reddit.com

Sketchup More on reddit.com