Very nice modifications they look really good. I was curious what did you use at the top of the ladder to anchor it to the upper bunk. We have a Trail Runner 30FQBS that has the bunks in the back and I like the ladder idea you had, it would make it alot easier for our 3 1/2 year old daughter to get in and out of the top bunk. Right now it is me getting her out of the bunk, with the ladder she could do it on her own.
it is actually a bunk bed ladder that a neighbor was getting rid of.. they are metal U shaped brackets that I"m sure you can get some of those metal braces at a hardware store and bend them.. if you have the light wood like ours... Cabots brand fruitwood stain matches wonderfully. I also used sticky felt on all of the brackets to keep them from scratching the wood on the side of the bunk.