That sounds like Larry engineering.
Why don't you just get some paint protection film and wrap that part of the top tube? You can get small pieces on Ebay. Do a search for Suntek or XPel. Stuff is bullet proof. I have it on two of my cars.
Suntek Ultra Paint Protection Film Bulk Clear Bra 36" By The Foot | eBay - buy a foot and you'll have enough for a lifetime.