3 days means 9 FP+ so I'd do the following assuming you don't want any of the mountains since the girls are too short? 7 Dwarfs, A&E, Enchanted Tales with Belle, Ariel M&G, Cinderella/Rapunzel M&G, Pirates of the Caribbean, Jungle Cruise, Fireworks (if you are keeping them up late to watch it), Peter Pan
If your 5 year old does want to ride the mountains and is 40" I'd drop Pirates & Jungle Cruise for Splash & Big Thunder then RopeDrop Pirates & Jungle cruise one day.
You should be able to grab a 4th FP+ for rides like Dumbo & Barnstormer.
For AK I'd FP+ Mickey/Minnie M&G, Safari (so you can go on it twice, once at RD, once later) & Everest (doing a rider swap so you and your DH can go on it even though the girls can't).
For Epcot I'd FP+ Turtle Talk with Crush, Illuminations (if staying up late) or Soarin' (rider swap) if not, & Spaceship Earth
For HS I'd FP+ Toy story, TOT (rider swap) and then one show. Do NOT FP+ Disney Jr. show it's not needed and you get up too close to the stage to see anything. I'd Rope Drop RnRC for you and hubby with Rider Swap.