While gluing each section of the electrical conduit I was feeding thru a nylon rope. I later used the rope to pull the cables thru the conduit.
I used 2 lengths of rope so while I was pulling the cables with one length I also pulled in the second length which stayed in the pipe along with the cables for future pulls.
I used 45 degree elbows to bring the pipe in and out of the ground and also to change direction. LMR-600 is a very stiff cable and 90 degree elbow might create some difficulties during the pull.