There are creative ways to make the smaller beds work. When our kids are along, my wife shares the dinette bed with one of them, sleeping in opposite directions. Much roomier that way, but not so romantic for couples... LOL!
When it’s just the two of us, we may share the dinette bed for couple time in the evening, but when it’s
lights out, I move to the front sofa. Sleeping in separate beds makes those middle-of-the-night pit stops easier without disturbing your partner.
Since the bathroom is important to you, I’d recommend sticking with front bath layouts. The
Scamp side bath is a postage-stamp-sized, height-limited, emergency-use-only affair.