Upgrading from API 2 to 3

Are there docs for upgrading FCKEditor 2 integrations to CKEditor 3, specifically dealing with the API?

I'm looking to switch/upgrade to CKEditor 3 in Liferay, and to do that I need to remap a few functions using the CKEditor 3 API. Since Liferay uses FCKEditor 2, I think the switch/upgrade should be totally doable, but the hardest part for me right now is the perceivable lack of FCKEditor 2 API documentation (compared to 3's API docs). is there a good how-to for translating 2's API into 3's API? Maybe it's simple, maybe it's not, but I can't dig up much about it.

For instance, Liferay maps the following FCKEditor 2 API:

function getHTML() {
   return FCKeditorAPI.GetInstance("FCKeditor1").GetXHTML();
}

function getText() {
   return FCKeditorAPI.GetInstance("FCKeditor1").GetXHTML();
}

function setHTML(value) {
   FCKeditorAPI.GetInstance("FCKeditor1").SetHTML(value);
}

Can I confidently assume that this would be the CKEditor 3 API equivalent?

function getHTML() {
   return CKEDITOR.instances.editor1.getData();
}

function getText() {
   return CKEDITOR.instances.editor1.getData();
}

function setHTML(value) {
   CKEDITOR.instances.editor1.setData(value);
}

Are there docs catered to help me along this process? Did I get it right? If I have var editor = CKEDITOR.replace('editor1'); can I write editor.setData(value); for even nicer shorthand? Experimentation is good education and all, but docs would be handy too.

As I move ahead, I'll start getting into more complicated configuration components, so I thought it would be best to ask now. Thanks in advance.

Jonathan