Thanks for your replies 🙂
Based on that picture, i would be able to fit that, minus say the left hand top 2 cubes, but i might be able to go three high on the opposite end… it would kind of be like a staircase itself, going one high, then two high, then three high… but the whole thing would be two deep all the way along. I guess i would make the second level 1×2 but it would be 2 cubes tall. Il try to find a way to draw it if that makes no sense!!
It sounds like it would make the minimum recommendations for 1 bunny but pushing it for a second.
I do have a spare bedroom I could use to give them more space but it is upstairs and I would rather them be downstairs near where I would be in the evenings so they dont have too far to go, at least whilst they are still young and getting used to their new home.
I like the ideas of the wooden dowels and plywood, that sounds safer than what I was imagining.