[WPalank]

First, thanks for looking in. Anyway, I have been an M8 with Leica lens shooter for a couple of years now. My backup camera is currently a Canon Mark III or 5D. I have been promised one of the first Mark II 5Ds to hit the US west coast. My typical Canon lens setup had been the L line.
So now I've been thinking of getting a Leica prime, most likely the 50mm Summilux-R. I think the most common adapter out there is the Novoflex R adapter. I have a few questions that haven't seemed to be answered in my Search query of this Forum:

1) Is mounting the adapter a simple operation. A jeweler's Philip's head and a couple of screws? Or do I need to get a pro involved?

2) Which adapter? Yes, I read a recent thread where everyone chimed in but no one gave their reasons. Example: "I bought the Chinese one." But why? Just because it was cheaper?
Camera West is advertising there's and saying it is much less stiff than other adapters. The place I am heading in the beginning of December is VERY desolate. No camera shops for probably a 1000 KMs. Last thing I want to do is save $50 but find myself unable to unmount my lens in the middle of the bush.

3) I know I will have to manually focus, but is stopping down the aperture on the Leica lens and then having to set the electronic aperture within camera a major pain in the ass?
Anyone have any experience with this system? I'm a street shooter/environmental portraiture guy on the fly and NOT a set up the tripod, manually meter for the shadows, screw in shutter release kind of guy. Any foreseeable problems?

4) Tried to find reviews comparing the Leica 50mm Summilux-R to the Canon L 50mm 1.2 and failed. Anyone have experiences with these lenses?

Thanks in advance for any help.