I live on the coast, and its so relaxing FPVing the coast, and buzzing boats in the humber. I prefer planes, but love team blacksheep vids with quadcopters... I doubt they get permission.

The more rigid the frame, the easier to get repeatable accuracy, your best bet i think would be read through some of the build logs, you will see what problems people overcome, and will see why them three that you pointed at are a basic,