I just bought a car and i got confused about CTP and property insurance also.
CTP cost can be found on insurance companies such as AAMI and NRMA, as well as insurance cost. If you take out multiple insurances from one insurer, such as NRMA, you sometimes get a small discount

My rego was $245 and I'm in NSW.

But its best to bring someone with you who is gifted at bargaining

Then you can get free stuff

Hope that helps