I have one of the same vintage with the same half system! Not trying to piss on your bonfire but thats not a full system.. Still think its worth every penny of what you are asking for it.
It's definitely a half-system. Your link pipe from the rear cylinder travels only a short distance towards the ground before coming back up to the end can. A full system goes all the way down to the horizontal pipe before coming back up. It's a half system I'm afraid. There are plenty of owners on here that will see that
