Hi steve, you have made a good choice by starting foil kitesurfing!
it is the original board, I learnt with it but I weight 70kg and I think if you are above, you will find it too short and not floatable enough. However you can easily fix the foil to a surf thanks to the platine. So if I had to learn again I would exactly do as we did, start with this board and if it is too difficult I woull find a surf and make 4 holes.
I don't know the mass but it is not all carbon. classic fiber and carbon with epoxy.
I would not buy a newer model (except for the same price...)
Send it to uk seems difficult and expensive but if you know a way we can discuss about it.