The reason I questioned your tub rough is that I didn't see a vent pipe for it's trap, and the fact that you're in a basement which, in my area requires the valve. A standard tub is 5ft long so the framed opening should be that or 60-1/4". The wall can be on that box, in fact, you may need to enlarge it some more when it comes to setting the tub.
The toilet needs to be 12" from center of pipe to finished wall- minimum.
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