Fuselage to Wingtip Measurement

My wings are in the hangar but I'm going ahead and starting to run my light wires. I want to leave enough wire from the fuselage exit to run it down the wing later. I was thinking the wings all together were about 15' (From when I moved them in a box truck). Does that sound right? If so I'll leave 16' of wire coiled up outside the fuselage.

My wing measures 12' 5" from spar root to edge. Wing tips are about 18" at the middle.

Okay thanks, I'll do 15' runs.

Just note that the 12' 5" doesn't include the tip, I may not have been clear there.

I found all of my calculations (err... guesses) for wire length needed based on drawings usually came up short.

Add 10 % if you think you are accurate or 15-20 % otherwise.