RE: Plane for 100 x 200 field?
airfoilz yak 54, by a longshot...
meets all your criteria, has an airfoil, is extremely aerobatic yet stable and tame, slows to a crawl and harriers without any wing rock; you can literally walk behind it as you circle your patch...
I fly it in a 20 by 60 clearing... the rest of the park in front of my house is trees and power lines!