Probably 2 contracts - 60 points each - one co-owned by each kid.
DS will be 18 in 3 years. DD will be 18 in 5 years. I hope they're still selling CRV at that time. But, by the looks of construction, it will be a close call. If Disney sells out before DD is old enough to co-own maybe we'll find some buyer's remorse points on the resell market.
These are wishful plans, of course. Who knows what we'll actually do.