Sorry, yes, I misread the first post as having AKL points, not Poly. But you could try looking for someone on the Rental board offering AKL points, contact them via PM and offering to book Poly reservations for them in exchange for the Studio reservation at AKL. It would be like a mutual rental, you book a reservation for them, they book a reservation for you. But that will take a lot of trust on both sides. Another option would be to fund someone that will transfer AKL points to you, the wrench there is that we are only allowed one transfer in or out per use year, so you could not just transfer Poly or RIV points back to the other owner.
Another option would be to rent your points out, and take that cash to book cash reservations, if you can find a good promo price on cash stays.
Personally, for a group needing 4 rooms, I'd probably just book at my home resort(s) at 22 months, then, if possible at 7 months, modify the reservation to a "less popular" resort like OKW or SSR, which are both lovely resorts and will often have availability into the 7 months window.
I did a stay at Kidani several years ago. Lovely resort, liked the animals, but if you get stuck at the end of the hallway, it is NOT pleasant. It was a one and done for me just because my visit was at the very end of the hallway.