Updating a Xamarin Binding based on updated Objective-C code

Hi,

I'm using MBProgressHUD that I took from monotouch-bindings here: https://github.com/mono/monotouch-bindings

Current version isn't iOS 7 ready yet (style-wise) and I'd like to update the code to the author's iOS7Style branch: https://github.com/jdg/MBProgressHUD/tree/iOS7Style

So I'm wondering, how could I do this? I guess I'll have to rebuild an entire binding around that code right?

Maybe I'm answering my own question but is there any easier way? or should I simply follow this link and proceed to build my own binding? http://docs.xamarin.com/guides/ios/advanced_topics/binding_objective-c/

Thanks!