Fellow 1800 rider in desperate need of help

Hello my brothers I am a 2003 Honda vtx1800c rider coming up to my very last options. You see my problem is I broke the oil pump drive sprocket and can not find one anywhere for purchase I was told that once a bike is 10 years old they stop making partas for it so now I'm desperately trying to find someone with the same bike any model 1800 between 2002 and 2008, I need someone to get me a diagram or schematic of the size shape so that I can go and have oneafe somewhere the one that was on my bike I gave to a friend to make for me and he disappeared so now I am left with no part to use as a reference... So please someone help a fellow rider out...