If you're really attached, do it, but be prepared to pay import duty, VAT and the expense of meeting certain EU requirements, such as lighting, etc.. But yes, there are a lot of American cars in Europe; some original imports and some brought over later. Lots of older/collectible/classic US cars end up in Europe. It's not really difficult. I think selling your van here and building another there is more pragmatic. I strongly suspect that building it out the second time will be much quicker, and you can make changes to improve over the current one.