yet more rust

hi all i wonder if anybody can help, for the past few months i have had to rebuild the rear body mounts/cross member, plate the inner wings, rebuild the headlight boxes & just as i think i have finnished i have found a large hole under the nsr wing. I just want to know is this an outer wing where i can plate from underneath or do i have to strip out the interior to pate from the inside. Any help would be appreciated.

You should be able to get to most of it by taking the outer wing off. Should easily plated from outside with wing off.

I plated mine from the outside. Its awkward to weld though and you get sparks going down your neck if you ain't careful.