Looks like the bottom bunk folk have quite a bit more headroom than the top bunk folk - am I seeing that right? I'll tell you one thing from experience, those bunks get a bit claustrophobic. I have mine equally spaced for top and bottom bunks and I still feel a bit "closed in"; so if your top bunk has even less space than my bunks... my skin is crawling just thinking about it. Of course maybe I have some "issues" with small spaces
. Anyways, I'm just putting it out there for you to consider before you get too far into it - think carefully about the experience the top bed folk may have with so little space, and remember the mattress will make that space even smaller. I understand the reasoning being that you don't want to block the door, but still... it looks really tight up there!