I'm making progress on the bunk bed. It's beating me up too. I'm sore all over. Here are some pics, there are more here.
This first one is a rough layout after I cut everything to length.
The head/foot boards are held together by glue and dowel pins.
I made the headboards slightly fancy and hand planed them smooth and flat. I hand planed all the rounded edges on the bed. I could borrow a router from someone and make it easy, but I like doing it the hard way.
laying out and aligning the boards. I made an alignment jig.