I've only done a couple of these myself, for friends also... I think you've found out that the main think is taking time over it - and you seem to have done that already coz this is a fabulous job. I think you should stop here - it's a brilliant job as it is. I've seen a few people go too far with restorations and completely lose the feel of the age of the original, purely because they forget that the original image (before aging and damage etc) would have looked far from perfect by todays standards anyways! (",)