The Ghia has a similiar pan design but was a different platform at the same time. You can interchange the front torsion assembly and the rear swingarm as well as the engines from the Type I, II and III.

I never really liked the Ghias all that much though they are kinda cool. I would take a Notchback all day long though and have owned almost every year Bug from 54 up to 67 (the last year worth owning for Bugs) and several fastbacks, squarebacks, couple notchbacks and a few busses and transporters.

I used to be a huge aircooled VW fan and still love them.