So I thought this was going to work nicely but not so much.
Seemed to make sense but as you can see the top 2x4 is not very stable. I was going to have the finished wall attached to those 2x4s and it works out that those would be flush. Now it is back to the drawing board. The only other ideas I have is to attach the studs right onto the ribs or put the one right under the window laying the other way... if I do that the ribs come out more than the stud and I'm unsure how to avoid thermal bridging. I think I'm just going to attach them right onto the ribs because I'm not sure what else could make sense. I would be left with a thermal bridge at every screw head on the framing if I go this route... I could do it where I screw the 2x4s in the way I was doing it and just use something to support the top 2x4 from turning. Any thoughts or ideas for me?