I purchased a NSW registered Perentie FFR and then registered it in the ACT.
To do this I had to have a Blue Slip inspection at a Tyre Power place, any authorised inspection place can do it. Cost $64. The main part is the emergency brake tests. The trailer was the same. Since there are many ADF, Federal Police, Customs and Commonwealth Public Service Suits being posted into (and out of) Canberra, the Rego Transfer vehicle checks at authorised inspection stations is very common. You do not need a "Dickson Inspection" done by the labcoats as I term them to d a rego transfer. You do need the lab coats if doing an original registration.
Once you have the Blue Slip you have permission to pay high prices for number plates and sales tax to put it in your name. They check the market value to set the tax. I paid $650 for the plates, the tax, and three months rego.