What kind of landscape are you working with? DFD's are tought to fit onto flat ground. A dfd would probably be better for you but a fuf would fit the approach better if it's flat.A donkey would work well too as you could lay it flat.
A frames, battleships, flat rails, elbows, z rails, c rails etc will work great on flat ground. Dfd's, flat downs, and other you want a hill. Also if you have a hill try and match the pitch with the downs. That will save you some headache when setting it up.