I pondered this long, and hard with many a sleepless night.
I just couldn't come up with anything I could use to mimic the curves of the Cobra body onto the hard top.
Finally a stroke of genius, or something like that.
My wife bought a birthday cake that someone didn't pick up. There was a small model tractor on top.
That little tractor sparked an idea.
So what I did was hold a marker on top of the tractor, then pushed the tractor [the tractor wheels rolled, and were soft rubber] around the bottom of the hard top while it was sitting on the body.
Here are a few pics so you can get an idea.
The pictures were after I did one cut, and it fit almost perfectly. I do want the top to sit lower [just a bit about the roll bar which is still higher than my head] for a more stealthy look so I will cut another pass with the jigsaw, and huge fan tomorrow.
I hope this helps anyone else trying to match the top to the body, as I made a thread here in the past about this, and it seemed that everyone was stumped.
Thanks.