I think the greatest benefit of this benefit will just be seeing that people are showing support. These are the times that really test the claims of the racing community being a family. If you are unable to make this ride, I'm sure that cards and prayers would also be appreciated.
If you have ever been to a Lightning HS, MX, or just went there for some open trail riding, I have no doubt you were welcomed treated well. This would be a good time to let them know that in whatever way you are able.