Hi Lex,
I don't have any help for you I'm afraid. I just thought I'd mention that before I started working for Planetside I was a boatbuilder and studying yacht design. This was quite a few years ago now. I became interested in TG because I was looking for something which made nice skies and water for displaying my boat models. After using TG for a bit I decided that it had too much potential not to be available on the Mac ( I was using Microstation and Maxsurf on the Mac for my yacht design stuff ) and I started working on a Mac port.
Anyway, sorry I have no suggestions, but what you were saying struck a chord with me :-).
Regards,
Jo