OP, I looked at your property via Google Maps and judging from the pic it looks like you should have plenty of room overall. Is the sidewalk a raised one or even w/ driveway cuz that would gain you some swing room. I was thinking your house was on the corner you are turning, but see that is not the case. You could try hugging the trees on left and try to have the RV tires hither 90* corner or as one said, arch it a bit. Can you run across the sidewalk w/ ease or no if you had to? Upon leaving, swing wide right to make your left turn, just be careful w/ cab/trailer corners.