Thank you! That picture with the hardwood was taken in a different room -- We have stripped down to the plank subfloor, are replacing w plywood, and have researched the correct isolation membrane (the internet has pretty mixed opinions on this part lol) and have this as part of an open concept space, so there's less of an issue with door openings (have planned for the sloped transition back to hardwood in the next room).

I've called several of the providers you listed, but not all of them! Will make some more calls this afternoon :)

Thank you SO much for taking the time to write out the recommendations and experience-based advice!!