So I built the 8 car set from styrene and AR Kits bogies. It has dummy knuckly couplers between the 8 wagons. I even made some long lengths of rail to go on top. The rail even negotiates the curves on the layout.
The 8 car railset train in the siding at Fairy Hill Loop with rail on board
The perway crew are ready to help with the unloading activity. You can see Fairy Hill farm in the distance
There she goes heading heading out of the siding, and heading off to Kyogle. Fairy Hill Farm is to the left of the loop.