Need to monkey patch a construct class

[automartin5000]

I'm not sure monkey patch is the right term here, so just bear with me on this one for a minute.

I have some constraints in my environment where I can't call a specific AWS Service's API directly, as in I can't get AWS IAM permissions for it. For the sake of argument, let's just say it's the EC2 API. But I have access to essentially a proxy service that accepts a CloudFormation template with EC2 resources.

So the way I see it I have two options:

1. Use escape hatches to override the CFN resource type in the template with my custom resource that calls out to the proxy

2. A potentially more interesting solution is to somehow override the EC2 class and swap it my own class with the custom resource, using the same user defined params and interface.

Thoughts?