Thanks for your words - and the bump.
I was wondering exactly how it removes the rivets. The plastic rear quarter trim panels in the convertibles, especially after 40+ years, are more than a little brittle. I am concerned that either removing (drilling?), or putting rivets back without some 'magic' tool may destroy them.
Even though I have more than one Mustang, I agree, its a tool I wouldn't use much after I put new W/S in both my cars. In another 40 years I won't be around to be concerned about any car.