HELP! Need emissions tube.

I'm looking for the air management tube for the 1-4 bank for a 1985 308 QV. This is the emissions tube for the pulse air system that attaches to the cylinder head, right above the exhaust ports on the rear most cylinder bank. No longer available new, Rutlands does not have used, also checked Ricambi and the other usual suspects. Any leads would be appreciated. Thanks in advance.