... These miners pretty much run
.... I would STRONGLY suggest to people non fluent in sysadmin work / scripting to not even attempt to run two config files or two instances of CGMiner on one Pi.
Never used a RasPi myself, but I understood they ran some form of *nix, in which case if the miners pretty much run, why not just setup two logins and run a cgminer in each? That way all the config files for one instance are completely separate from the other instance. You can run them via cron or some sort of autostart script so that they launch when the RasPi is restarted.