You will have to ride without your hubby on a few rides. On Dumbo, you and 2 girls on one, and your hubby and one girl on another (have your hubby sit in front of you, and he can turn around and take your picture!) Check out
www.wdwig.com, there are pictures of several of the ride "vehicles" there.
You will also find a great spot to watch the fireworks by reading the "fireworks viewing areas" article on
www.wdwig.com, and from the comments of everyone here.
BTW, you CAN watch the fireworks from the Poly, even though you are not staying there. Just take the monorail from Chef Mickeys after dinner to the Poly, and walk down to the "beach" and enjoy!
You said you are staying the last night at AKL, where will you spend the rest of your trip??