Looks great even without paint, like a barn find that hasn't been touched for fifty years.
£1,000 for the spray job sounds like good value given the labour intensive nature of it.
Yellow's going to be a great colour, too. What shade do you have in mind? I've always liked Fiat broom yellow as used on assorted Fiat Coupes and Barchettas:
Anyway, great job getting it through the mot and good luck with the finishing touches.
