Fitting Bushing

I'm looking for a "fitting bushing" part number "928 101 195 03". This is a guide pin that goes between the 2 engine block pieces when mating the block assembly together. There are a total of 2 bushings located on opposite corners of the block. There purpose is to keep the 2 pieces of the block from moving relative to each other. The part is NLA from Porsche and I have had no luck in sourcing the part from suppliers or after market sources. If someone has or knows of anyone with a useless block assembly that is willing to part with the bushing or the block I am in dire need of at least 1 of these bushings. See attached jpg for more info. The position number is 20 in the 1983-86 USA/CANADA parts catalog. Thanks for your help.

I have a block with pistons, rods, crankshaft etc. Block has zero ridge and all in good shape. Engine (4 point 7) only did 120000 miles. Cannot help you with the bushing but if you want the entire assembly that I have email me at richg2931@yahoo.com