How to limit creation of a resouce type to a context

I have created some custom resource classes, some of which involve additional functionality like creating resource groups, related user groups, custom interface, etc. I'm using SimpleCart which adds two more resource types and also have two contexts. I only want the custom resource classes to be available for creation on one of the contexts, not both. What is the best way to achieve this?

I don't think there is any way to do that. You can change the default resource type in the context settings, but not limit what types are available in the create drop-downs.