You will get far better responses than mine, but here goes -
Mine was moderately 'lumpy' but not gouged up.
1. Removed, scotchbrited exterior; cleaned with Eastwood's 'Pre' to remove all traces of chemical, silicones, etc.
2. Used dremel cut-off wheel and wire wheel to remove rust from frame that had swollen areas near the mounts (very common)
3. Coated inner metal with oxygen-robbing rust proofing sealer.
4. Used weatherstrip adhesive in cracked area and clamped tightly between flat metal bars to control shape.
5. Once adhesive dried, rewiped with Pre and coated with Eastwood bumper/trim spray.
The above has lasted 4 years. I vaguely recall photographing and posting, but it was long enough ago I've no idea and likely deleted the pictures, but I hope the description helps you.
You can get fiberglass replacements. You can also go chrome or stainless. (Would have to do front and back of course.)
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