Let's be done with this (for now):
A fine kit paired with an M4. I have both of those lenses (and a few more
) and I can see taking just those two on a fun trip. The Elmar is just something you need to experience. Compact. I've put it on a film M and slip it in my laptop case before going on many work trips. Quick through airport (security), and with me during meetings, and more importantly before and after meetings. Nice.
The CV 35/1.4 does shift, but just go and use it. I've learned not to even think about that. Often enough, I get the focus just fine. When I don't, I don't. Performance at 1.4 is....not the usual Leica performance, but stopped down it performs OK. If image quality is paramount to you, don't get this lens. Get the Biogon-C 35/2.8 (or a v4 summicron 35/2, etc). I don't know what you've read on the internet, but the Biogon is pure performance all the way. And its plenty small and light (hence the "C" in its name). It will stun you. (yes, I have a Biogon too
I'll end my recommendation with this: Some nice folks here have emphasized that it doesn't much matter what lens you get. They're right! I appreciate trying to improve the chances of getting that "keeper" by getting recommendations, and it does help. But, this is the world of Leica -- don't even think you're stopping here (with just 2 lenses). You'll be back, and we'll have more recommendations for you