At one point during the installation of our windshield it became clear that we needed an additional wingnut cleco - the windshield simply wasn't conforming to the shape of the fuselage joggle as well as expected. We had exhausted our supply of wingnut clecos, so what were we to do?
After having a 66-gallon Turtlepac ferry bladder installed (which allows a single stop on the southern tip of Greenland or other alternates) in the back and testing its functioning, we were fully ready, including appropriate insurance coverage and the requested permits from the UK, Denmark (for Greenland) and Canada.