Shecky,
Very cherry! Nice job. That bike takes me back to my childhood when I had a Speedster. It was my first big kid bike.

I question you chances of getting a caliper on in the front. Even if you found one that had enough reach (looks mighty far to the rim from the crown), the fork looks a little lightweight, the fork might shudder under braking.

Enjoy your sweet ride. That bike is screaming for white wall tires.