I bought a house that needed a'lot of work what i wanted. The house was built in 1900. I have completely remodeled the downstairs but the kitchen. The kitchen was is a two-story addition added some time later. When i bought the house i knew the roof was leaking above the addition and repaired, it after buying. The problem is the leak was much worse than i had thought. So i gutted the kitchen and found the studs and outside sheathing and sill plate completely rotted. The bad section is about six feet from corner on each wall. i believe it is a balloon style framing. The studs are full length from sill to roof, and the corner stud is now resting on the foundation. How do i replace this without the thing falling over ?