Thanks to doing a search here I discovered that the MkIV rack I was about to use to set the positions of the support brackets was unsuitable, (turning
the steering wheel to the left would have resulted in the wheels going right, interesting!!). This resulted in a search on the web for a supplier.
Classic Autospares are doing them for £14 exchange, (£20 surcharge for no exchange). Seems reasonable to me.
www.classicautospares.com
Mick
It's ok, I paid £40 for mine - no exchange.