The Jap market versions were a lot better for resisting rot. My Mk.I is pretty clean underneath and its 21 odd years old. The rails seem to made from girders

However this year I have a complete over haul of the underneath planned. Fill the chassis with old oil and drain out to get into all the nooks and crannys, followed by filling with wax. Then the outside a good wire brush down and coating with Kurust, then heavy coat of Hammerite.
Then there is the body work
