If you have kids, then you should have a LUA, no excuses at all. Admin privileges should be left to yourself or a suitable other. Especially as you stated your kid tries to install multiple CDs from a kids magazine. Never know what PUP gets installed alongside this. I think CIS should be the only package installed, there is no need for NVT Exe Radar Pro at all. CIS + LUA should be sufficient.
Good config otherwise, sorry for the abrupt approach, but over paranoid thinking is also a security weakness on it's own sometimes.
~LDogg