I agree with Jack @Semaphore’s comments above.
To address your remaining question:
You can, but… You don’t give a continent, but I am guess that you are southern hemisphere (I am northern, and the Forum is international). If that is the case, making a 2 frame nucleus going in to Autumn is tricky. I would not try it myself, but if I had to do it, I would make sure it already had a mated queen, plus:
- Two really full frames of brood
- Two frames of honey and pollen (half frame of pollen at least, and 1.5 frames almost full of honey)
- Fifth frame of fully drawn comb (also known as a “sticky”)
You would then have a 5 frame nucleus to overwinter. I would not try to overwinter a 2 frame colony.
Let us know a bit more info, and maybe @JeffH or some Western Australia forumites (if I guessed right) could contribute more to help.