Smog pumps

[uswnvg!mpalme1@uunet.UU.NET (Mark Palmer)]

The previous owner of my '77 MG removed the air pump and filter assembly.  I 
got away with this for the last 3 years since my residence did not fall into the
emissions check zone.  Well the state has finally caught up with me and I need
to bring my MG up to code so I can renew my registration.  So, does anyone know
of a good source for an air pump for less than a weeks salary?  Any help would
be appreciated.  Thanks.