hi, no clue about the year of the Claud Butler frame, just guessing its something between 1995-2001 (because in early 2000s frames usually got a disc brake mount at the back), and yes, very likely using Aluminum 7005,
but to me pretty obviously, this is bike is a custom build, with different brakes, different rims / hubs, and components mixed over various years.
The pictures aren't very good to see details, or I need glasses.
The crank might be a Sugino Impel or Shimano Exage, both from Mid Nineties, the rear derailleur looks like a LX 570 from 2000 or later.
The Marzocchi Bomber suspension fork has typically a clear indication of production year, your's should be roughly from 2001.