I have glanced at pocket doors but wasn't sure how hard they would be to install.
As AG said, they are pretty easy to install. But the kits vary, and do not actually include the door (mine didn't anyway). I got them at Home Depot. The instructions read like they were translated into English from Swahili by a Chinaman, so I took my time figuring out what to do. It took me almost two hours to install the first one, and less than 30 minutes apiece for the other seven.