Conduct disorder? You're a brave man. Recommend with his list of diagnosis and the fact that he is in and RTC, that you take time to look at as much information on RAD as you can. I know he's not showing that as a diagnosis, but I doubt seriously that he could have the list you gave without it.
www.radzebra.org is where I'd suggest starting. I'd also want a good history on this child. How'd he land in the RTC? Where has he spent the last 11 years? How often did he move and why? Talk with any former parents that you can. If you're going to parent this child, you want as much information up front as you can get. There are a lot of kids in this age range that would like to be adopted. You need to make sure this one does. Some kids cannot function inside families. It's sad that so much damage can be done to a child that they cannot handle a family, but it does happen.
If this is what you want, I wish you luck.