I like this! Do you think it would work if the rear glass is parallel to the ground or on the same plane as the top instead of open all of the way? I have run mine that way just using bungee cords. Your strut idea gives a lot more support.
Before I got a hardtop for my CJ-7 I ran thousands of mile with the door windows open and the rear curtain rolled up with no problem. If the front windows were closed and the rear curtain rolled up it would suck in CO big time!
1978 CJ-7 original owner; AMC 401 V-8 (w/some goodies);NP4500;D300 (w/Curry 4:1); D44 front;AMC20 (Warn one piece axles) rear