I have a 2003 4Runner Limited also with rust along the leading edge of the sunroof frame. I found it when I tried to clear the drains to prevent the leaking I have been getting inside the cabin. It is so advanced that rusted metal has fallen away and the little pieces are clogging the drains. This is my first major issue with this 12-year old vehicle so it's hard to whine about it but I would really like to get it fixed well enough to get another 5+ years out of it. Has anyone else had experienced and had this repaired? I see that Russman30 has done this in Hawaii but I was hoping for a less expensive solution.