question answered!

NZ classic car magazine very kindly printed my enquiry regarding this reworked rear suspension. (many thanks!)
in response, Brent very kindly sent me details and links! (many thanks!)
This was built by Andrew Stanton.
Its possible that this chassis was built for Rocky, a guy who has modified alot of heralds, his site is,
http://homepages.paradise.net.nz/lghrnrm/#Minty
andrews is available upon request.