Finally, after a long delay...the rabbits get their new habitat.
The cage wire was the most expensive part - 20 feet of strong galvanized 1/2" x 1" wire cost about $100. The wood struts - all the blue in the photo - are furring strips, so that was about $20. Everything else was salvage - the roofing is made out of cabinet doors from dismantled built ins (have I mentioned the previous owners' extreme fondness for badly designed built in furniture?) and the sides and inner shelves from old pine 1x12" boards.
The doors were the fun part - they are also salvaged cabinet fronts, and I decided at 10pm that night that they should be fun, so I drew designs freehand and cut them out with a jigsaw. The trees are my favorite, though they took the longest. It kinda makes me want to buy a scroll saw, so that I can do better versions for the house.
Still to build is the automatic watering system, but that will have to be another post for another day! I'm working in the midwives' office 3 days a week now, so I have a lot less time for building crazy stuff in the backyard and finding new and creative ways to injure myself.