Need photos, but in general, I would recommend 2 chairs opposite the longer end of the sectional.

I can see why you are retired Sophie, your arrogance is noted. Your invalid assumptions and snipey tone suggest it may be time to take up knitting or at least find another forum? We have several professionals involved on this high end project. All of whom understand ergonomics. Nevertheless, I was interested in other opinions as there is still an acceptable range within expert views and average heights are on the rise. That said, from a stylistic point of view there is often a push toward lower. Further, the huge range of heights in ready made furniture shows just how much variation there is. Some of it is ergonomically designed, some is not.

http://www.littlefurnitureshop.co.uk/product-category/new/sofas-new/Hello, We make sofas which as based on old designs and as we were smaller 100 years ago, they are perfect for those looking for something which is comfortable. Link attached. Happy to help if you need further information.

Do you know where I can purchase LexMod Sofas from in NewZealand? Thank you