Priming the engine before start up wouldn't hurt Bill (even thought the oiling systen is no more complicated than any other rocker shaft engine). It would be a good idea to turn the engine over a little bit at a time while you're doing the priming and and make sure you prime long enought to completly fill both rocker shafts.

I suspect you know that you will have to pull the intermediate shaft out in order to prime it. If you;ve never done this simply take a long screwdriver put it into the slot where the distributor sets and turn it so the teeth on the gear walk up out of the teeth cut into the cam. Use a magnet to pull the shaft the rest of the way out of the engine, then use the the priming shaft.