I am building a 1/4 scale piper cub ,and it shows a door cut out on plans.the doorcut out is in front of former 6.I would like to build this plane with opening door &window but I`m worried about the strength around former 6 cuz thats where the wing sets.If any one can help me I`d like to hear from ya. A pic or drawing would sure help.I have built 10 planes so far but this door cut out has me worried.Ive done alot of reserch,and plan on doing the cockpit as realistic as possable(making throttle,gas on-off trim lever&canvass sling seats,fuel tank ect) and want door& window to open,but I want to fly her also.

Thanks for your time
prop buster crop duster