Modern trusses aren’t that heavy, are they? When my old boss built his house he used reclaimed wood from old farm houses within the forest. The “new “ trusses were made from old trusses, solid bits of wood. 8 inches x 3 inches. All the “new” trusses were 6 inches thick. Three of us lifted all...
Put the shotgun case in WD40 or similar for 24 hours, that should kill the primer. Then you can gently knock it out. Wear safety glasses and ear muffs just in case and keep at arm length from it whilst your doing the deprimming.
Daughters old Fiesta had two leaks. The trim which ran the length of the roof and the vent behind the rear bumper. All the water ended up in the sore wheel well. Vent was easy to, roof trim was a bit more of a pain. None of our VWs have leaked yet
I watch a couple of truck builders on YouTube, they buy rolls of sound deadening material. It isn’t very thick but it does a very good job. Easy to cut to shape and has a sticky backing on it.