Thanks for the replies, gentlemen. If I wanted a 2M version, I would just buy Richard's plans. There is no sense in recreating the wheel, after all. But I want a slightly different animal with a more "square" layout (length ~ span), similar to the 65" version Andre built. He does not have any plans for that one, though, and no intentions of producing plans. So, I am doing one myself. Keeps me out of trouble, if nothing else...

And I don't want to simply copy the dimensions from previous work, I would like a better understanding of how much and where, etc. to get this design to work properly. Being an engineer, I have a problem doing something "just because" without an understanding of why I am doing it that way. Old habits die hard, I guess.
Thanks,
Mark