Finally come to the realisation that I don't have the skills or resources to deal with this beauty, so off we go to Colin Gould (Kingsdown Classics) to see what he thinks about it. As it turns out there's not much (if anything) on a P6 that he can't do (cills made of Weetabix included!), so the car is now in his tender loving care. His associate has promised to provide a photo diary of the horrors uncovered and how they are resolved. Will post pictures as received.