sorry. its not working out.

I can tell you what I see in the diagram. And its not very detailed, so I don't think it would help you much.

oil comes from first main crank bearing, up IP side through bottom of head into first cam bearing the to the rest of the cam via oil tube on top.

rest of oil leaves first cam bearing and goes to tensioner.


------

this confuses me though because there is an oil port in the back of the head also..... maybe its just a drain?