I'm thinking about how to hook up the wires from the right wing and decided I could cut a slot between the big hole to the small wire hole and back fill the slot with a brace. This will allow me to put the connector on the wing wires now and plug them in thru the large hole then slide them down into the small hole with a bushing. I'll put the bushing on the wires and plug it in after the wires are in place.
I used a piece of 1/8 " thick aluminum to fill in the space. I will use #8 screws to hold the splice in place after the wires are thru.