Why do you think a 5.5" wide fender bib wouldn't work?  The fender itself is plenty wide enough.

You might try finding a local leather worker and seeing if he can make a custom piece to your liking. To make a fender bib isn't hard; it's just a few stamps, stitches, and holes.  Never hurts to ask - you might even save a buck.

ok I give pls tell me what,s a fender bib

Went with a Mustang 78031...says 5 1/2"  will see how it covers.  DW says just buy an English wheel and make a new fender....no thanks.  

Will post pics when done.

Wouldn't Need a bib if you'd learn how to ride and not slobber so much.

I remember shortly after getting the bike and getting it on some back roads, away from everyone,, and I heard a sound,, one I hadnt heard in a while,, it took me a few seconds to figure out what it was.. I was Laughing,,  I wasnt aware I was Gonna start laffing,, I was just so overcome with joy, the feeling of freedom,, spontaneous laughter just Came OUT,,  Not in traffic,, only out, away,, and at speeds below adrenaline levels.. That went on for weeks,, finally, riding became more normal and I stopped just laffing out loud,,, the smile? Never dimmed.