Well it looks like that part should work for my application. Apparently there were several different styles of oil connectors that should be interchangeable. I see a comparison photo at
this link that describes all the differences.
I also tracked down a source for the rocker arm shafts, they carry replacements at egge manufacturing for about $47 apiece. I will order the replacement oil connector and use my current rocker shafts until I see if this engine is going to work out. If it does I know where to order new shafts.