Bob,
Having just gone through the process of buying (and investing heavily) in a 4x5 Ebony and a range of lenses, I agree with what the above posters have said, but I'd like to add that the Ebony 4x5 > 6x9 adapter can also be used easily on the 4x5 version of the cameras allowing the swing-out feature for the GG and the use of the a 6x9 roll film holder and if you want to shoot 4x5 or 6x12 in the future, . . ."Guess I'm becoming a more serious landscape photographer ....." and it's likely you will, I'd suggest you get the 4x5 version.
The difference in weight between the 6x9 & 4x5 versions is negligible but you can grow with the 4x5.
There are some excellent reviews of the various 6x9 and 4x5 cameras available, on Tuan's LF web site, if you haven't already looked there.
http://www.cs.berkeley.edu/~qtluong/photography/lf/listcameras.html
Good luck with your choice.
Kind regards
Peter Brown
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