Hmmm, just looked at your photo Radical. Personally, I would cut out a good bit of the wing skin around the mounting beams, and reinforce or maybe change the stock ones completely. The wing skin part can either be glued back on, or made to function as a big access hatch for future possible retract repairs/maintainance. You can do it now, when everything is clean and new, or later when you have a mess after a hard landing /off the field landing.

Just a thought