your first 3 items in the budget kit are NOT 90% the performance. they're literally half the performance of the ones you bought ... IF you need the upgrades
5D3 vs 5D2 = autofocus lightyears ahead. auto settings that are a great big help (min. shutter and min. ISO)
the 2 lenses are double the aperture. nuff said.
the last 2 however are debatable and there will never be a concensus.