Hi Rob, I resited the temptation to bite when you 1st posted but I guess all I can say in the inimitable words of Carter the Unstoppable Sex Machine, "YOU FAT BAS****". Try and do a good, clean job when you glue it on. This was probably the best quality bit of rock in the valley and it would be a shame to do a Sharples/Hart on it (ie. slather it in offensively bright gloop). Ru did do a very good job on Seraphim and Jonboy is a veritable antique restorer so maybe they might.
cheers