Harlan,
There's one more thing you need to take into consideration, and that is how in-shape your face is. You need to be prepared to have a permanent grin on your face while you are driving your Cobra...which may go on for hours or days at a time. Not everyone can handle this kind of pure excitement, so please do take some time to practice before buying your first one.
Here's a good read (and accurate too):
Driving A Cobra Replica