Hi James,
I want to do a similar thing on my 1966 +4 which has steel wheels and a luggage carrier that doesn't fix to the over riders. I've got the replacement rack but need to sort out the fixing at the centre of the spare wheel.
John Worrall sells stainless T bars but not really beer money!
http://www.heartofenglandmorgans.co.uk(online shop, luggage carriers and related items)
