Thanks, carry on the plane best but I will be over weight. Excess baggage for 30 kg is around £1200 or £600 if booked in advance. Also I have to get it to the airport.
Post office is between £150 and £400 for 20 kg maximum.
There are two firms that will collect and deliver a suitcase up to 30kg for around £230.
Sea freight was stupid, B26,000 plus £500 in UK - think a full container is only a bit more.
Hope this information helps others.