Hi Coff, Welcome to the forum. A few things to consider based on experience. Coffee trailers in my opinion are good, in that they can be moved to another vehicle, if say, your normal vehicle needs to go in for service, you're not out of action. They do have a few gotcha's however. They can be harder to set up once onsite (not always, but sometimes) and usually don't come with a generator, which will be essential at a lot of sites. The genny will add anywhere from 7-10k to your price, and in a trailer scenario, won't be plumbed in to the fuel line of your car. They're also super heavy, so you would want to make sure it's mounted to the trailer. Another thing to consider is, this is all very heavy, and the ball weight and tow weight of the trailer would be over limit for some vehicles. The site you mentioned above looks ok, I've heard of them before and have seen the second hand trailer they have listed in VIC on ebay before. I think it's an ok set up. Other than that, good luck! -ACog