I have decided to finally tackle the only leaky window on our 89 LHD. It's the window behind the sliding door. Having removed the Gaffa tape and the silicone seal (previous owners work) I have finally been able to see what on earth is going on behind. No surprises, it's as rotten as a fish. Here is a photo..


Any advise? Been looking at many posts and think the way forward it to cut out and weld a new piece. However, if my van was made of wood I could do a really good repair but as it is metal I am lost!
Is there anyone in Wales that can do this? Do I need a section cut out from a donor van and if so does anyone have this section? Would the cut need to be below the gutter part that hold the cover plate in place?
We are planning to paint the van with a roller after this is done so anyone's help would be much appreciated!!
ioan