I have a few pilot manuals I have downloaded over the years. The P-38L and the P47 could use 165 gallon tanks. We only have 150 gal tanks in game. I put in a wish for the larger tanks a couple years ago. According to the P-51D manual I have, the Mustang normally used 75 gallon tanks, but could use 110 gallon tanks if necessary.
I am trying to read the article you linked, but the page won't load right now.
In any case, the Mustang with 75 gallon tanks should be comparable to all the P-47 models except the N. You throw in cruise settings, and you should get much better range.