I just repaired one. Didn't come out perfect, but you have to really be looking to notice. I just cut out all the old, rusty metal and patched in a replacement piece of metal across the front. The mounting holes were shot too, so I cut that out and welded in new metal there as well. The top was free, so it was worth the time and effort to do the fix. May not last me more than a few years, but it keeps the rain out. I'll try to post pictures when I get home.