Fwd wing to fuselage bolt lockwire
 

Where have you attached your lockwire at the forward wing attach brackets and the bolt ?

If you're talking about the fuel tank attach brackets, you can drill a 1/16" hole in the T405 bracket below the bolt. It was in the plans for the -6/6A; I don't see it in the plans for the 7/7A but the material and attach method are the same so I don't think a small hole near the edge of the bracket will cause you a problem.