Hi, you can do whatever you like, just as long as you follow the rules below:
You are free to use the Gantry Framework for your personal and commercial projects. You do not have to keep the Gantry or RocketTheme links and logos in the frontend, however you must ensure that all copyright notices in the code are retained. Also if you intend to use the Gantry Framework in a commercial project, or a theme you intend to redistribute in any form, please retain a "Powered by Gantry" logo and link in the backend administrative interface.
The difficult we do immediately, the impossible takes a little longer.