Starting to reinstall walls in the Bambi II. Several were held in place with what VTS calls "bulkhead molding:
The original moldings were more of a T shape and there is very little shoulder to rivet to the trailer. I guess the biggest issue is getting the nose of the pop rivet gun down onto the shoulder because of the actual extrusion that holds the wall. Is there a way to do this, or should I just screw this trim to the wall?
That is what I have done so far, but I know that rivets have superior holding power.