To be honest, you really shouldn't have to reinstall anything and your current setup should work just fine if you have given yourself full admin rights. You were just trying to remove your mods from the users\documents Sims 3 folder area instead of the \program files (x86) one where they were actually located (and working quite nicely, much to your dismay).  Same with awesomemod. Throw the awesomemod into \program files (x86)\electronic arts\sims 3\mods\packages  instead of the users\documents area and see if that works for you.