Hi Bree, Our main bathroom is identical to ur bathroom. We r about have our bathroom renovated as well. Is ur toilet next to the bathroom as u walk in the door? We have our toilet next to the bathroom. There is a void space in front of the toilet that also leads into the bathroom. We r moving our toilet forward into the void as a individual room. We r then moving the opening to the bathroom a little further down the hall. The area that was the toilet is being reframed to be included into the bathroom and will be a shower that will be double the size of the current shower. Therefore we have a lot more space freed up with the shower moved for a larger vanity and bath. This was the only way we could keep everything in the bathroom without it looking so pokey. I hope this makes sense. Pls let me know if I'd doesn't and I can draw it up.

i understand that waterproofing is supposed to be a continuous membrane and not patched and, depending on the age of the original bathroom there may not be an existing waterproof membrane, there could be asbestos and/or damage caused when removing the old bath or other surprises... you might be able to find the necessary tradespeople willing to do what you ask but i would'nt expect them to guarantee the waterproofing

take off your shoes and test drive a few baths in store but don't forget width and depth but especially available space in the bathroom

Look at what shampoo bottles you use and size accordingly. I know we have 2 pump bottles pls bath liquid and a couple of extra it,es for individual needs.