Not much more done. As I said in post 10 the W7 paint and then eraser facility is good enough to remove obvious spots (to the right of the captain's hat and above the stewardess).
I didn't do enough research before I bought the V330 as it will only do 35mm film and slides.
I have loads of negatives from the 30s still to do (120 format). Apparently the Epson V500 will do these. However will save this project for next winter.