[robs71k5]

Yes close to that . I've been working out a way to close that gap with a peice of 4" black abs pipe, cut a strip out length wise (about 1/3 of the abs pipe) to attach to the fwd mounting position would be the top of the windshield post and the other at the aft of the window but mounted perhaps off the roll bar and poles from the softopper mounting hardware . If some put their talents together you could probably seal the hole window with little effort making you Blazer essentially leak proof and I don't know about you but I like that idea.
2nd note
I have a good head start on a redesigned pop up camper for my 1st gen Blazer . I hope to be showing it off to you this coming summer