You know your fasteners. 3/4 it is... ab0ut half inch of planking and rib and about a quarter clinched over. I'll give you a call.
Taz would be a great place to be stuck. One of our sons went to UTAS. We found out years later that he bought a junk Audi and drove it all over the island. The story came out when we found the plates from it in his detritus.
It's on my list of places to go. One of his buddies spent some time here so we have a place to visit and stay.