Stu,
The Rotovac is a great tool, but like all tools takes a while to get used to it. got rid of mine prematurely, wish Id kept it. You do need a top powered (Twin 3 stage vac) portable at least to go with it, and the one on the US site is underpowered, hence the low price. I think if you imported that start up pack from the US, after US taxex, shipping,duty and vat you wouldnt be making any kind of saving.
Dave.