I noticed a small amount of rust coming through my left rocker below the fender and I want to fix it. Anyone know where to get E39 patch panels? Thanks

If you're talking about replacement pieces, there are plenty of cars on this forum being parted. If not here, Bavarian auto recycling will have the pieces you want. If you want to patch the area, any reputable body shop will patch it and respray it for you for a nominal fee.

My girlfriends dad is a body guy and he told me to just find a patch panel so he doesn't have to spend the time custom shaping a piece of sheet metal....Im trying to avoid the whole "grind and fill" approach to fixing rust so many of the body shops here in MN like to use......Ill try BavAutoRec, thanks!!