Firstly thanks for the effort you are putting in
Secondly, your pics are pretty much along the track I was thinking. Would work with 2 but not 3. Joel's pics above may provide the necessary compromise. Could then use Velcro to secure it down as there would be plenty of surface area!
Secondly, your pics are pretty much along the track I was thinking. Would work with 2 but not 3. Joel's pics above may provide the necessary compromise. Could then use Velcro to secure it down as there would be plenty of surface area!