If you do decide to lead it, please be aware that the acid in the flux will migrate to the back side of the pin holes and will need to be neutralized, or it will rust from the inside out.
Another reason to use JB Weld or body filler. Either can go right over the existing epoxy primer. Mike said it had already been blasted.
Why make things harder than they need to be? Unless you want to become the expert on lead patching, I'd leave that alone.
