Try contacting the importer - they may be able to help.
Some repairers will sell you the belts and be okay about you fitting them yourself.
Here in Australia, I've bought universal belt sets from radio and electronics shops (a few years ago) and was able to get a near enough fit from those.
If you are quite handy, O-rings and seals of varying lengths and thickness can be sourced, cut and re-glued to make up belts. The material is quite durable.
Good luck.
Munro
May 2011
