Just curious what level are you at? This question sounds open ended as we do not know what building level your SQ is at and how many Freeze rays you are aquiring on average a day. We have until late Monday night so as they said get them down to one heart, though they are limited as to how many you can have at one time as well. As for going all out, that is what i'd do, grind the event to the end and yes do all of your friends towns as well you may get donuts from one of them depending on your friend level.
i average about one to two of the donut super bonuses daily, and that is without sitting on the game all day. Though I am a freemium player so i tend not to speed things up much using them. Also is there any item or things you are worried about not getting? As for crafting I hope they dont have any in the next phase as i have built 3 or 4 of each building and a ton of phone booths. With 7 days for phase hope not lol
