RC, Thanks a lot for the constructive ideas, it`s just what I was hoping for. Adding a third axle will be no trouble at all (I`ve several tractor units that fit the bill - LOL) I`ll see which to photgraph tomorrow.
If you knew how long those sides took me - you wouldn`t say to get rid of them
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Since completing the model, I`ve seen several 1:1 brick trucks on the road with drop-down sides made from open mesh. I think I`ll have a go with that idea on another trailer. Once again - thanks.