I bought my bus ('95 International 3800 w/ T444 engine) a few years ago in high school when I lived in Florida, and have had a great time with it over the last few years. I did the conversion on an ultra-low budget (only a few thousand dollars including purchase), and designed it for 6 people to take on short trips. I left the original insulation installed, and really didn't touch the frame much, and also never installed any plumbing.
Now, I'm going to gut it and re-convert as more of a full time bus for one or two people. This time around I hope to be able to put a lot more resources into it, and make it look more like home. I should be starting in a month or so, and am starting a thread to document my progress.
Old pictures attached.