No, I'm sorry, but Ultimate Tinymce is a free plugin. You didn't pay any money for the Ultimate Tinymce Plugin.
The Custom Styles addon is indeed a paid plugin. It is a paid plugin because of the many hours which went into it's development. I would love to be able to offer all my work for free, but that's entirely unrealistic.
If you had asked me nicely, I would have been happy to write you a function you can use in your theme which would define some styles for you, exactly like the ones I had in the plugin... but you didn't ask. Instead, you decided to throw your hands in the air and huff & puff.
So, if you'd like me to give you the function, let me know.
Lastly, you didn't have to mark the plugin as broken just because I removed a feature you liked. That's not really the intended purpose of the works versus broken rating system.