I was in the same boat on the same equipment overseas. As long as your latest PPC is current within 6 months all you need to do is present a copy of your ride report and foreign documents to Transport and they will renew your IFR based on your foreign PPC.
It's all you need to do unless it lapses for more than 5 years. You don't need to keep it current every 2, but if it goes longer than 5 you need to rewrite your INRAT, so don't do that.
Any transport office should be able to provide tha above information.