Any advice would be much appreciated!
In terms of the wrong car model, thatÃƒÂ¢Ã‚â‚¬Ã‚â„¢s a pretty minor error that probably wouldnÃƒÂ¢Ã‚â‚¬Ã‚â„¢t help much in Court. Since your BF was summoned, there are no set fines. The Justice of the Peace will determine what the fines are if your BF is convicted.
If he follows the CrownÃƒÂ¢Ã‚â‚¬Ã‚â„¢s advice, pays off his fines and gets his licence reinstated, they might let him plea to a less serious offence, such as drive no licence. There wouldnÃƒÂ¢Ã‚â‚¬Ã‚â„¢t be the automatic suspension and it would have a much less serious insurance implications.
Edit: Here are the fines.
Drive suspend - Minimum $1,000, max $5,000 on a first offence
Expired ownership $110
Expired insurance slip $65