I have three4′ lights down the center and one across the nose over the sinks, also two 100 watt bulbs in the hood, plenty of light, no shadows.
Do you need to have your build inspected for mechanical?
We have labor & industries (building inspector) here in WA, they inspect all plumbing, mechanical, electrical. My electrical was required to be surface mounted.
Better check before you do any work and get that hd approval.