After what seems like an eternity we have finally exchanged. We move on the 28th. Thank you all for your kind words and support. I'm sure I'll be back to ask your advice on kitchens, carpets, boilers and etc. The house has not been updated in 40 years. Gulp.
It was such a long drawn affair... I can only say that the solicitor is so important. My buyer's solicitor was completely useless. Even she said so. Good luck everyone!