You are on your way! My panels with the 5er and TC were portable so I still had them when they were sold and we got the C.
The panels are all still portable. I make wood tray frames (mostly open at the bottom) for them on the roof. The trays go over lower height roof obstructions like tank vents and skylights. Can't go over Maxair covers though. See photo in profile showing end of tray for the three 100s, eg.
The trays are secured to things on the roof like the cargo rails at the back. The panels sit in the trays with their corners held down. Ugly but it all works, and you can keep your panels and trays for the next rig. Also can be ground-mounted in tilted, twirling contraptions.
Solar can be a set and forget deal, or a crazy hobby. If the latter, beware of these half- price sales! Lie down until the feeling goes away, or see your doctor. (Unless he is into solar too.)