[jmatta]

I feel you really need to set your goals on how you'll use the car, so you won't be unhappy with your purchase. The early cars are raw, a blast to drive, expensive and a/c means roll the windows down.

A few companies produce aftermarket a/c components for the SC and Carreras, but do not interpret this as "modern"; it will blow air, but it is hardly cool.

One of my favorite 911s to this day was a triple black 1983 911SC...too bad they didn't have digital cameras back then, I'd post a pic. You state that $37.5 may be on the heavy side? Get a good grip on your budget, include reserves to make the car correct, and we could help you further decide what car you should be looking for.