I'm not sure what you are looking for -- if you have already replaced the floor, it sounds like you already have the floor plan?? Sorry if I am missing the point of your question.
In any event, if you are tearing out the whole inside, the sky is the limit -- you can customize to your heart's content, as long as the appliances are all in their proper places (which will be determined by the location of their plumbing and gas fixtures).
Good luck!!
2012 Fun Finder X-139 "Boondock Style" (axle-flipped and extra insulation)
2013 Toyota Tacoma Off-Road (semi-beefy tires and components)
Our trips -- pix and textAbout our trailer"A journey of a thousand miles begins with a single list."