Another setup I saw way back when involved a 1 piece acrylic or lexan insert that replaced the back window and wrapped up over the back edge of the cab replaced 80% of the roof. Above the windshield and above the doors was all that was left. Looked great and kinda gave the open feel of a removable hardtop but without messin with the doors.
I ma racking my brain, but can't remember who made that insert your talking about..
Was kinda cool, but I've never seen one in person to really decide if I like the way it fits.