[Leica] Leica lenses on other cameras

[Douglas Nygren]

I've been thinking of buying a Sony A7RII and putting Leica M lenses on it.What are the pros and cons of doing this?
Am I right to think that wider angle lenses do less well on the camera?
My thought is that I'd use the first trip-elmar on it, the 28, 35, 50mm lens.
I also have a smilax 50 and 35, but my goal is to travel light. Less is more.
The alternative is to buy a Fuji XT-1 with he kit zoom and an additional 56mm lens.
When shooting with a Leica camera, I always preferred wider angle lenses. A 35mm was about as long as I would go. I like showing things in their environment, though I also like portraits.
I'm interest to hear what you all say.
I thank you all in advance.
Best--Doug