Welcome to the forum Dave.
The Vario 870 is a brute of a model, I have one as a JD850 version for 4yrs now & have loved every minute of it with its awesome power & long reach. It'll fill a Tamiya dump trk in 4 to 5 scoops. The only downside is its 80lbs weight to pack it around.
An aussie member on our forum has ordered the Sandmaster dump trk, I would think he would have it in his hands by month's end to share his thoughts of it with us then.