Welcome to Coffee Snobs smitten.
The sponsor Cuppacoffee (see the link on the left) takes a machine to functions.
Im not sure if its on a cart but you could ask him for a start.
He wont be back online until the 8th.
I would think that info on machines and grinders would go hand in hand becuase some might go better in a cart situation.
What equipment were you considering?