In this link someone supplied pictures of the Newmar AC vent seals mounted on bottom of AC to coincide with the two ceiling vent system built by Newmar.
As you can see we have someones MA coach but not the pictures for venting system.
If someone recognizes this couple I can send a PM and ask if he has the link with pictures so we can repost in Quick Tips.
It will help some people that are changing their AC's for upgrade or replacement.
Thanks for your efforts.