I am planning on doing the same. I like the fish-eye view, but could you let me know....
1. What's the dimensions?
2. How much head space (distance from the top of the lower mattress to the bottom of the upper bunk)? It looks like the top bunk has more space in that respect.
3. Did you use a custom mattress, foam, or camping pad for cusioning?
4. How did you attach to the side walls and to the dividing walls?
5. Are those dividing wall original or did you beef them up to support the load?
Sorry for all the questions, but I want to learn from your experience.