I had a 75 cosworth with the pop out side windows. I just bought a 73 GT was wondering if those pop out windows would work in the 73, and if so, what kind of job is it to switch them over,and what exactly is needed to do this. I have a 67 bug that I put pop outs in and it made a huge difference in the car in the summer, seeing as in my car is black I figured this would help even more with the vega. Thanks!!!