Ok, here is what I did. After very close inspection, I realized that cutting part of the ankles of the EB was not the right aproach. Arms and legs were the same size in both figures. As I said, the problem was the torso, so I decided to undress the figure.
After taking off the padding, you can see the torso being too long.
I cut the ball and socket of the upper torso and made a cut of the excess middle part.
Perfect cut, you can see the rubber padding that covers the articulation removed.
Made more cutting and sanding. About to put the upper torso with a little chunk of epoxy putty.
Let it dry for a couple of hours. Testing the body and now both figures have the same proportion and exactly the same size. EB cowl looks big but with the suit on, the head looks just about right.
Dressing up the figure, a little bit of pubic hair for more realism
Padding on the trapezius and more padding on the chest.
Gluing everything back.
I had done this mod before the torso mod. Took all the excess padding for the belt to fit right. But the waist on the suit was loose so I cut the ends on the back of the suit with the two holes, made new ones and now the suit has the right waist shape.