I realize that we're probably not swimming in money here, but it might be a situation where owning two bikes is a practical compromise. I can tell you what's comfortable for me, but I'm ready to admit that I've never worked a 12 hour shift on my bike. Probably my longest time in the cockpit with no relief was being a bike escort for the Madison Marathon.

My most comfy bike has its hand grips about 2 inches above seat level. With the swept bars, my hands are also about 2 inches behind the axis of the steering tube. In contrast, an old drop bar bike in my garage has its brake hoods some 7 inches fore of the steering axis, though I think some newer drop bars are more compact. Still, it means, I'm 2 inches up and full 9 inches back from e.g., a typical touring bike. Both of those things add to a more upright posture. My hands are also further apart.

On the other hand, I'm not sitting bolt upright, like in the pictures of Dutch cyclists. That's painful too, especially on hills.

If you like the cruiser, then get a cruiser. We won't tell.