I think I would support Robbiedog in purchasing from a UK dealer.
I guess its your money, so you spend it how you want. But I'm sure The chaps at Kudos would cut you a cracking deal.
I have been lucky, and my ebike has not put a foot wrong yet, but I would certainly attach high value to the support from a dealer in the UK who speaks good English and has a willingness to help. Many UK firms have shown on this site how they will go the extra mile to keep customers happy, and as I can't solder anything myself I would certainly err on the side of peace of mind.
I can see an advantage for a really shoddy, cheap item to save a few bob, but the EMotion bikes are very high quality and if you are only going to save say £200 buying abroad, I'd pay the extra and get it from Kudos.