I compiled a table a couple of years ago on my computer, and I've been adding cars to it as they came up in conversation/sale etc. For once facebook has been very useful here! So has Flikr, just searching brings up a couple of pictures of GTs and people often leave nostalgic or ownership claiming comments.
As they are so few and far between, I think it's worth the effort to try and keep what is left of them going and in public view. It's a shame that even some of them on the list may have gone, like Milkyjoe's B89 XJK for example. We never did hear what hapenned to that.
If the owners don't object, I also have images of the GT's that I can post, unless of course they want to post their own
I also have a couple listed that are very likely dead/buried etc.