My intent from the beginning was to graft two kits together to make an AP tanker with trailer...the trailer base will be an italeri #766 canvas trailer with a tanker top. The problem was that the kit tanker body was too short for what I needed for either the truck or the trailer so some mods were in order. As per the pic here you'll see that both halves of the tanker{upper and lower} make a nice long tanker on the trailer kit - but I plan on it being a little shorter when done. Note in the 2nd pic the use of two hole rims back then with "balloon tires" as they called them.

You'll note that I covered up the kit rear window so I could make the optional two side rear window version some of the cabs had...remember, I like to be different!
Here's a conoco truck and double trailer set up that I plan on copying by using just the tanker halves on top of a new body platform for both the truck and trailer. This is the enclosed cab with no doors. Options for this truck were the C cab type with no roof, C cab type with roof and with doors, and there was as shown the upgrade as I'll call it enclosed cab.

Here's a shot of the rear cab double side windows-

I had to get these images from my Mack AP Superduty book since there isn't a whole lot available on the web! This book is a needed given for any AP truck builds!
Intersting note per the AC kit...it includes the complete headlights and running lights but has no mention of them at all in the instructions...thru the book references I'll be using them...at least the headlights if not both.