That’s a fun path you’re walking, gearwise. I’ve been there and can’t help but approve.
This is my favorite demo of the unique Helios character (44M instead of 44-2, but let’s assume it’s the same thing because it is, roughly).
The excited video description is a nice touch:
This lens must have been designed by a painter. How else to explain the impressionistic swirly bokeh and crazy lens flare not to mention the rich vibrant colors? (…)
If this video doesn’t convince you that old lenses very much have a place in today’s digital age, nothing will.