Go for the Ghia. You still don't see that many about.
I'm looking to discs on the rod, but it has the same 5 x 205 stud pattern so looking about £600 an end to swap, unless you swap hubs, but that then loses the nicer stud look.
Power wise, there's plenty of stuff you can do to make em a bit quicker. Nowhere near golf power without massive monies, but a 1641 kit with a set of twin carbs should see you doing ok for everyday use.