Elevated and leveled fuselage for wheel fairing work, using tail wall stand, scissor jacks and borrowed wing jack stands. Had to reposition wing jack stands to allow clearance for chalk line. Hung plumb bobs from forward and aft center lines; snapped chalk line on floor to establish center line for wheel fairing alignment. Sprayed line with clear lacquer to preserve on floor. (Line in third photo was highlighted in Photoshop to increase visibility.)