Have something in mind for these but can't seem to find a source. Anybody out there point me in the right direction?
The Roadster Factory sells the complete unit for $3995. They might be able to source parts.
Have you tried Brown & Gammons? Number 23 and 24. Pricy and I'm not sure they are in stock but worth a call.
http://www.ukmgparts.com/browse.aspx?CID=9a1b882b-af87-491c-9934-fcfa71653c6e&SID=2d5e9ee0-cf70-4299-9380-8b72fd8ea4fc
Given the expense of the replacement RV8 parts, I have since moved on to a different solution.