Paul,
I don't know anything about the lenses you've mentioned, but I do have a 240 G-Claron and it is one sweet lens on an 8x10. Another lens worth considering right now is the recently discontinued Nikkor 450 M. If Robert White or Badger closes them out at great prices (like they did with the G-Claron) you might get a real deal on one and while not "wide" I think a long lens is a useful addition to any 8x10 kit and the 450 M has acres of wiggle room(mine lives aboard a 12x20) Also with 8x10 I think it isn't very cost effective to have focal lengths so close together---YMMV of course---but a 100mm difference between focal lenghts is what it takes for me to see any worthwhile difference on the gg. Less lenses means less wieght and less to carry around. My kit is roughly 159, 240/250, 360 , 450, 19" If you wanted to limit yourself to wide angles then really only two lenses, say a 155/165 and a 240 /270 would have you well covered and you could spend the rest of your money on chemicals, film and paper.
Cheers!
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