I beg to differ a little. A Kode 80 will overlap a lot with your pocket 72. And for freeride type sailing, even at your lighter weight, I think the Kode 86 will do an excellent job for 4.5-5.7. For really powered up 4.5 sailing it might start to get a bit hectic, but then you can always use the pocket 72.
The Kode 80 will of course also work, if you want more focus on a nice and soft ride for the 4.5 sailing.