Oh - so you did your GFT before passing the RT exam? Interesting! I think I did my RT just before my first solo cross country. I think the ATO wouldn't let people sit the test unless they had all the pre-requisites.
Just so you know - although yes you can get the night rating added at the same time as your PPL is issued, you will however, still require to pay for the issuance of the individual rating.
For the IMC rating - I believe that you need 25 hours POST PPL issue logged before you can get your rating issued. The IMC course can count towards that requirement, and the course is 15 hours minimum before you can do the IMC test. (just for information)
Have fun night flying!!