Well done Bob, we used to go all around the country for SGB building birdcage scaffolds in Sainsbury's new stores, we could do a whole store in a weekend 5 handed ,all was going well until a plumber using a heat gun set fire to the store and that was the end of polyblock. You could probably do the same with 5 pallets piled on top of each other though or some well placed piles of bricks.