I am doing some serious design on a hard top to replace the soft canvas top. This includes the popup sides as well. It is looking very promising and should be no more expensive than the canvas version but a lot easier to pop up.
Thank you for your input. The initial production pop-up top will have an insulated hard top with insulated canvas sides. We may eventually offer hard sides, the soft sides appear to be the most practical solution at this time.
I will be posting some photos of the new pop-up top this week. We are very pleased with the prototype, its ease of assembly, light weight and the finished feel to the interior.