If a forum vendor can't help you, give
Team Illuminata Motorsport a call. They sell Team Dynamics and BRAID wheels.
As for strength, TD wheels are solid when used for the application. I've seen them break, but it was a car using lightweight Pro Race wheels that had an unknown history to compete in RallyX. Completely wrong wheel for the sport. I use the TD Pro Rally wheels and they have taken unbelievable amounts of abuse with no issues.