Nicu, the #3 mechanic did show up today. He appeared to be a little more knowledgeable than the previous one. He determined that the old Renault is toast. Not enough compression any longer and the oil was not getting pumped up through the top of the engine and was most likely the reason the rocker arm broke.
So I am shopping for a reconditioned engine or a new one. Right now there is little available in the former and I’ll be spending my children’s heritage.