ETA: Here is the front an back after I did the smallest possible seam allowances possible. When I do the real one I will add more to the hip area. Lots more. Maybe two inches on each side? I know it sounds like a lot but I just let out an inch just now and you can see it is still pretty snug.

The chest area will need to be taken up about a 1/2" in the front and the back. I didn't do it already because I wanted to double check.

I pressed the zipper open because the fabric kept getting stuck in the metal zipper. I use the same zipper over and over again for muslins.
And no, it will not be this short. I just didn't have enough of this cotton fabric to make it the full length.