Just one more thing...
That many blokes could drag the van back onto the road, once it's safely balanced again. They could slit the tyres, fill em with grass, duct tape them together again..
then they head back down the mountain...
oh, and just one more thing... they take out the flame-thrower they were hiding (just in case), turn it on, and drive too fast down the hill (one of them being a superannuated rally champion). The flame-thrower scares the shit out of the pursuers and you see a close-up of their faces contorted with fear and shock before they get smashed off the road and tumble in flames onto the rocks below (all in slowmotion with close-ups of the faces as certain death approaches.
Croker and the lads hide the van plus gold in a cave by a cove no-one else knows about except the baddy whose grandma was from this neck of the water.
Then they have a quiet ale or two by the sea, smelling the Mediterranean pines.
In a few months Croker returns with his dad in a launch, having killed the others in the meantime. Loads the gold under the tarp and heads off into the sunset.
(Paris cos she too could have cooked this up on the bog, and the old stories are always the best...)