Wanted: 1673 or 1673B Cat truck engine, 70B 78B 83B, air cleaner parts

I am looking for a running 1963-1968 era 1673 or 1673B engine (220-245hp) for a project, needs to be a runner, Looking for the type with sculpted aftercooler, so no 1Ls and no 1673C/3306. This is the truck engine version of D333T. The applicable serial number prefixes should be 70B, 78B, 83B. The 74Bs are the slanted-installations for use in like Ford cabovers. I have the 9L966 air cleaner for it, but I am missing the cast outlet elbow 9L698. I would buy a whole air cleaner assembly to get that flange and elbow casting. It was specific to the 1673 truck engine air cleaner application only. Thanks!

I'm still looking for a running 1673 or 1673B serial prefix 70B, 78B, or 83B, if anyone know of one sitting.