There is not a quote anywhere that nails down for sure what the FINAL size was...
It was posted about twelve pages ago. ILM sources give the length of the ship at EXACTLy 2357 feet. THAT is the final size, handed to us
by the people who made the damn movie. Arguments against this size is a matter of personal preference and apparently boil down to three camps
1) TOS era ships shouldn't be this big, therefore, Enterprise shouldn't be this big.
2) TNG era ships were this big, therefore, Enterprise shouldn't be this big
3) It doesn't look this big, therefore, it shouldn't be this big.
We can argue in circles forever about what size the ship SHOULD be. But the production crew ultimately made the ship 718 meters long regardless of what anyone else thinks.