Many thanks will doI booked it individually. Cruise with ncl the flights through skyscanner and the hotels direct If I recall it cost about £2200 per person As for going in Feb not sure as I have had a quick look and cant see any with the same itinerary
http://www.cruisetimetables.com/ is quite good for looking for itineraries without being bombarded with spam and ads.
Give me a shout if you need any further info.