Notice that Brent is using a special tool to pull the leading edge cover against the nose ribs. 

If you look closely at the tool, you will see that it consist of a lever arm with an aluminum strap connected to it   This lever is pressing against a wooden block.  The wooden block is the other part of the tool and the other end of the aluminum strap is connected to the bottom of the wooden block creating a sort of loop which wraps from the block, around the leading edge cover to the lever arm. 

Lets look at another feature.  This is the bottom wing.  Notice that the drag and anti drag wires are not on the outboard section of the wing.  Instead, the designer chose to use a diagonal wooden brace in place of an anti drag wire.  This  brace is functioning as a drag wire in the compression of the brace and as an anti drag wire in the tension of the brace.