Okay- here it goes. I like the 35/2.8. It is a small lens, almost too small on the M2. It's a perfect size for a CL. It's a nice, low-contrast lens and is sharp enough.
An M2 is going to run $600 and more. If it has not been CLA'd in the past 10~15 years, you'll need to drop another $200 for one. The FE and Kiev together might cover the cost a good CLA.
So what camera to get that is less expensive to match up with the Canon 35/2.8? You know that one- Canon P, Canon Vt, Canon VI-T, Canon 7. The FE and Kiev (Still have the Sonnar?) will get you into that ballpark.
Anyway, Fast 50s are better for Baby Pictures!