ICOT;
1) Am i being serious? I dont know- are you being intelligent?
2) 4′ (feet) is narrow- ya; i dont see any specs in the question. And it doesnt take much imagination to make the sukkah 8×8 instead of 8×4. the only spec was ‘easy’.
3)3/4″ plywood. where did you get that figure from? Of course its heavy. Get a 1/4″ for one-time and a 5/8 for yeaar to year.
4) Splintering? So what- the only criteria was ‘simple’.
5)Door; good point; Clarification – one of the panels should be on a hinge instead of an ‘L’ brace. Then you can add an eye-hook on the other side.
6)Will require tools – So? are screwdrivers dangerous? Putting a screw into wood sounds simple.
7) Protruding screw ends; they sell screws in various sizes.
PS two days before yom-kippur – you should be a bit more polite.