I'm currently thinking either red steelies with baby moons or dog dish caps, or (if I can find a set that fits) some old Western Wheel turbine style rims. (Edit: Slotted mags are also not out of the question.)
As for the fun...that's the plan. I'm going to upgrade the brakes, give it a little love where it needs it, and then take it on long road trips. Hopefully do Power Tour at some point.