The holes and rivets would be very tiny. They only need to hold the strip in place, as opposed to rivets holding structural bits together.Problem could be the rivet holes close to the major axis affecting the strength
That works too.How about getting making a pattern from poster board, make a streamline fairing, a tad over-size in the fat section, and using Adel clamps on the tubing to attach the aluminum fairing? No holes drilled in the strut, this way.
Anything you can shape and slide on will do really.