EVAManager provides a config-based interface for adding, removing, and modifying PartModules and PartResources for EVA Kerbals. Also provided is a basic mechanism for "filling" resources from the origin pod, allowing for proper conservation across missions.
Someday soon I'll improve this thread to be more like a release thread. In the meantime, it's just a conversation moved over from another thread.
My first post on the subject:
EVAManager is chiefly available within the Tweaka