lol ok, if you plan on making a shot that doesnt specifically need the camera to be moving then no green screening is required, simply lock down your camera and record the place which ur semi visable self will be walking through later although the cons of this is that nothing can be moving in this shot, trees, cars anything other wise they to will be displaced l8er on along with ur actor.
so have ...
background plate (camera locked down)-as the bottom layer
then same locked down shot but with actor doind wat ever- middle layer
and then the displacment map - top layer.
if u need your shot to be panning etc then the only option is green or red or blue screen keying
lol gd luck dude