Hi Marshall, how's it going. There's a guy up the road from my parent's place that is in the process of doing a '66 GT convertible. I know he's got a lot of new bits and I'm not sure if he has double-ups of any parts. I'll ask him next time I see him. Is there any problem with getting your old ones fixed up? Dad's got the contact details of somone who repairs these sorts of things.
I recently got my bars done at Argo Plating & Metal Polishing 44 Baldock St Moorooka. 07 3848 4034. They might be able to help also.