I'm after recommendations for the best way to repair the boot rain channel on my Tr7. As you can see the chanel is part of the rear wing, and has rusted through the bottom and side of the chanel. I can form a chanel but am after the best way to fit and weld it in. My idea was to cut half way up the inner lip which is good and seam weld the channel with a joggled overlap which would be hidden, then grind the weld flush and seal the back. Is this the best method or is there a better way? Thanks for any advice!