It's going to be fabulous! With your sputnik, how about something else MCM over the sink? See "Mid-century modern pendant" in Houzz Photos for some ideas.

So our sink will be under window with fridge/oven/cabs on wall on right. White subway tiles grey grout. Need style suggestions of mini pendant type light over sink that will flow with spudnick style hanging fixture over table that will be on far left near slider doors. Thinking of painting light gray. Really need your thoughts and advice. Feeling unsure and overwhelmed right now

Sounds like a lovely design. I really like the flooring you chose. If you are looking for a single light pendant, this may compliment the Sputnik style chandelier:

It comes in a few different finishes. This polished nickel would coordinate with the color scheme you described.

Best of luck on your project!

You could do a single pendant. Keep it simple to go with the style of sputnik. Maybe post a pic of the specific sputnik chandelier so people can help make suggestions. I posted a few pendants below that we make from blown glass that you may like. Available in a few different sizes, if you did them small.

www.shakuff.com