Well a trip to Bunnings for a new rivet gun and finish off the roof vent:
Before Gap
After Gap
Rivets done
Just need to touch up the rivets (and the inside of the hardtop) with some black paint and all is done
The rubber drain hose (8mm ID) has been put down the passengers side drain. Just need to do a test drive and see if it rattles, leaks and actually ducts some air in!
All the photos (full size) https://plus.google.com/photos/115769813738304087848/albums/5825804442852251281