is it a tipper or a hook lift truck

[uk trucker]

Looking good,
With regard to the springs, I put an extra leaf inbetween the Tamiya ones.
I used the springy banding that comes on packing cases to make the extra leaves.

We will have to have a "skip fest" one day.Think yours will out lift mine though but at least ,as you say, there are not many hook loaders around in r/c world.