I've been speaking to TSS as we have exhibitions over in NI later in the year. I suggest you register and contact them directly to ask - there were actually quite useful. The answer I was given was; - yes you need an XI EORI number. - No, we do not need a carnet. In fact it might not be possible as it's still inside the UK (as well as not inside. Schrondingers carnet...) - As we remain the owners of everything, we will be both the consignor and consignee - As the haulier (our vans) we will need to do the port pass document as well. That includes a detailed inventory of everything going. This applies to us though - it may not be the same for you. I have printed copies of all the answers I have been given. The inventory is going to be a pain in the ass. Oh, and taking a van over empty means empty. No pallets, empty crates etc. I suspect a toolbox would be OK as personal goods, but I can't say for sure. Next on my list is a call with the Chambers of Commerce to see if we can work out what paperwork we need to send a van, with crew, to Germany to work on a trade stand. Joy....