Hi Diana. I have that exact bedding type that you are considering, so ran the tape measure over it.
Length is 2.2 metres, width 1.9 metres. I also had a separate headboard prior to purchase.
I purchased the combination latex/memory foam mattresses and find them super comfortable.
Hope this helps. If you require any further information post another question.

Thanks for your reply much appreciated

Really, Town and Country are the only one who can give you a definite price. What I can advise is that I live in Newcastle, NSW and purchased a split king from the South Australia factory. Delivery was vey reasonable considering the distance. The bed is, without a doubt, one of the best purchases I have ever made. I would recommend the latex/memory foam mattresses, they are super comfy.