longer door mirror arm?

anyone know where I can get me a longer mirror arm for Edith. It seemed a few months ago that there were a zillion on ebay - now that I actually need one (as I'm fitting a side mounted spare) there's nothing and when I do a search on gooogle bugger all comes up apart from shome ****ey native american indian art.

All help etc appreciated.

Also - Brushed on some two-pack paint on Ediths suspension arms and axles today. ill effects don't necceserrily lead to death I trust?