Hey can anyone tell me what parts I need to do a rear disc brake conversion on my EG? Is this a easy task?

Please do a search. This is a rather common question and has been covered many times already.

Try searching "rear disc" I know you will find things because I already searched using those words. I am not going to spoon feed you though so dig in and do some reading.

If you have any further questions after reading please post them in this thread. Don't post in threads that are old, just read them.