I did my Cert IV many years ago after it was identified as "soon" to be a requirement so some colleges had put the effort in to work out a deal for flight instructors with recognition of prior learning. I ended up doing about half the course which was useful. My Cert IV turned out to be useful for the flight school only to be able to name someone for the RTO side of things.
No such prearranged RPL these days so you'd have to put effort into the preparation then talk to the College. Good luck with that.