More info since my original posting: the clearance between the new tub and new toilet will be 10" without relocating anything, and 7" between the vanity and new toilet with the wider vanity. The total wall space is 121" wide.

Code requires 15" of clearance from the toilet centerline to adjacent cabinets, etc, on either side of the toilet. That's the only real written requirement.

The tub side clearance sounds fine. The 7" on the vanity probably puts you pretty close to the 15" minimum since most toilets are about 15" wide. Just do a mock up with a sheet of cardboard set vertically to represent the side of the vanity and see if the toilet/vanity clearance is functional, and if you have a place for the TP holder.

Normally an inch or so inside the 15" minimum isn't a factor with most inspectors when remodeling. New construction they might ding it, but when remodeling they're usually a bit myopic.

Here's an article on this based on Natinal Kithchen and Bath Association guidelines. I have to tell you I didn't read it or follow it when I did the same as the OP. I have a 5 x 7 bathroom and replaced a 30 wide tub with 32 inch wide. Finding a 30 in. wide was very hard and the Kohler Archer is 32 inch wide and most recommended I saw on this forum. If I went home a measured all my clearances now in my new remodel I bet none are 'enough'. If you drew it on the floor and you're happy, that's good.

All the articles on this site are really helpful. Buried in there somewhere are faucet ratings I found really helpful that turned me on the Hamat faucets from Israel and I love mine.

Here is a link that might be useful: Bathroom design clearances