No info for you Patrick but I do recall plenty of Chat on what Hall had to do to make the targa conversions at it was quite extensive. Perhaps Michael/aka Cyboman will weigh in.
Since you mentioned roadster, there was a Pantera on Craigs list some time back that had been converted to a roadster/convertible. Here's a link to a thread with some pictures of that poor thing.
http://pantera.infopop.cc/eve/...=580106554#580106554
Best,
K
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