Tom, on my panel the strips below the hinge were tack welded apparently from the factory. In replacing the inner panels I notice one was missing.
You can order these from JimCarter. I don't think other vendors carry it.
I just ordered a one foot piece for $15. I started to try make it or get someone to make it but figure it wasn't worth the pain. I also think you can order longer lengths....I talked with Mike at JimCarter and they actually offer the entire thing!
Hope this helps.
