Do you have a residence above you? If so, your options are limited. If not, the electrician can drill through the concrete in the right place. A plasterer can patch the old hole but you will always see the outline of the patch. If you have the roof height you could frame out and install a false ceiling, solving both your lighting and popcorn ceiling problems at the same time.

I would highly recommend redesigning the ceiling fixtures, rather than working around what's already there. It's cluttered and lopsided; and you will probably regret it, or spend much more $ fixing it afterwards. I'm 1/2 way through my kitchen project with a large island hub. To make space for the pendants, I removed two round fluoro's, moved an A/C outlet (and another in the adjacent room with a sky-light), then patched and painted. It's all simple stuff, you just have to design around the ceiling joists, and usually the previous cut-outs are left in the roof (makes it easy to patch). I also installed an electronic sky-light from Bunnings for the in-laws, which is perfect for small roof-space issues. A very small PV panel goes on the north-side of the roof, a slim LED panel goes in the kitchen ceiling, and a long power cable links the two.

Wait till you get the cabinets and benchtop in and reassess once you see how they bounce lights. You can always add more downlights. The pendants could be hung lower but won’t spread as much light then.

Your choice of pendants are gorgeous but would keep as a cluster at end of bench doorway side, strip lighting could look fabulous or even one beautiful pendant would look stunning.