The patterns I used Butterick B4556, View F for my bodice and New Look 6764 for my pant. My fabric choice was a light weight denim that had slight stretch; it is a home dec fabric and could be used for window treatments.
At first draft, I added 2.5″ to the side seams on front and back pieces and was WAYYYYY too big; then, I cut sides seams down 2″ and it was too tight. Second draft, I added side panels that were about 1 1/8″ and it was just right! I adjusted the collar to open at the back because I decided on a zipper back. Wrong!…I moved the zipper to the side. I would have been trapped in my jumpsuit, come bathroom time! I also cut 1″ off side seams of pants and took the “curve” out of the side hip making them straight, as I have no hips. I cut 2″ off the waist of the bodice (my short torso); and added upper bust darts, so I would not have “wings”.
I used to wear jumpsuits LOTS in the 70s! But, I will stick to the elastic waist (no zips, please) jumpers!