How to clone a content type?
The easiest way is to use the Bundle copy module, but if you can't get that to work I'd recommend the Configuration Management module. 


  The configuration management module enables the ability to keep track of specific configurations on a Drupal site, provides the ability to move these configurations between different environments (local, dev, qa, prod), and also move configurations between completely different sites (migrate configurations) without the use of modules with all configuration being owned by the site.


It's basically features with the stuff you don't need. Its sole purpose is to move configuration from one site to another.