The Scunthorpe Society of Model Engineers.
http://www.scunthorpesme.co.uk/
Thanks to Wilf for encouraging me with this project.

Useful places to visit and learn more about Stirling engines
the Model Engineer's Support Page!
http://easyweb.easynet.co.uk/~chrish/homepage.htm
Calculating the Stirling cycle thermodynamic process
http://www.pha.jhu.edu/~broholm/l38/node7.html
Nerds only!
Koichi Hirata's Stirling Engine Home Page
http://www.bekkoame.ne.jp/~khirata/indexe.htm
Suppliers of parts and materials
4D modelshop. Model Making Materials, Tools & Accessories
http://www.modelshop.co.uk
MIDLAND BEARINGS LTD
http://www.midlandbearings.com
SMB bearings
Unit 8 West Oxon Industrial Park
Brize Norton, Oxon, O18 3YJ
United Kingdom
 http://www.smbbearings.com/index.htm
U.K.
U.S.
VXB.com Bearings,
NationSkander California Corp
2165 S Dupont Dr Unit F, Anaheim CA 92806, USA
http://www.vxb.com