Don't know if Chester is too far out for you but....
Caseys camping place at Grosvenor garden centre in Chester is FAB, bought both our tents from there (and most of our bits and pieces too) Pricewise they are very good :)
All the tents were stiil up last Sunday. Very well presented too. Whilst we were these someone returned an inner sleeping liner. I waited for the expected arguement to develop following our experience with Go Outdoors but the fault was acknowledged and a replacement part ordered immediatly.
Wish we'd gone there first. The big Outwells are stunning.