I'm considering designing a tonneau for a 4 seater Mog.
The Ton.needs to not only cover the front cockpit with a Zip fastener between driver and pas. but also be adaptable to only cover the rear cockpit.
I plan to incorp. a pair of slots to fit and be secured by each head rest stem allowing the surplus ton. to drape down behind the front seats. the ton. could then be tensioned by adjusting the seat rake.

I plan to engage a local upholsterer
Does anyone have any views other than telling me I've lost my marbles.

I don't care how cold it is, we're having the roof down.