Bearing in mind that the person referred to does not have internet access, then I think making contact with Parkside Dundas would be a sensible way forward, as they stock a great variety of most of what is currently available in the world of 009.
It should also be advised that 009 also depends quite heavily on N gauge components - particularly loco chassis, so becoming familiar with contemporary N gauge stock is advantageous. The Kato 11-103 tram chassis and the Bachmann "MDT" 6 wheel Plymouth diesel are both cheap and very reliable chassis that are often used as power units by starters in 009
Parkside Dundas is at:
Telephone & Fax: +44 1592 640896
Website if access does become possible: www.parksidedundas.co.uk
They have a very comprehensive catalogue and both their helpful response and mail order service are renowned. Andrew Hastie, one of the two proprietors of the firm, has been a member of the 009 Society since its foundation and is very knowledgeable about the hobby.