Thans for the input guys, I'm currently trying to find one to be a nice medium format travel camera system, since my current film medium format systems are the Mamiya 645AFD, and the Hasselblad 503CW, and both of those are of course amazing cameras, but you really have to commit to taking them, you can't take it on a leisurely vacation. I'm looking for something to fit next to my Leica's or as a film counterpart to my Sony RX1R for travel when I might want to make some nice images without having to be in "full photographer mode" as relates to gear carrying.
The external viewfinder thing is a good point, I don't think that I will mind this (I already shoot my Leica 24mm with external viewfinder) since the lenses are so wide that for most things hyperfocal or scale focusing will suffice, but I'll have to see what the external viewfinders look like.
Now, in terms of lenses. I think that 65, 80, 150 is reasonable, but as to an ultra-wide does anyone have any thoughts on 50 vs 43, they both seem to produce amazing images, though they are (relatively) similar focal lengths, with not much of a difference. I'm not sure which I would chose since they both need external viewfinders, and they are both f/4.5 lenses (I believe), does the 43 have significant distortion? because if it doesn't it seems like 43 would be the logical choice, but I could be wrong, thoughts appreciated.
Thanks again all.
Best,
BH