Garnette could also fit in this. Or, and you can save her and Leo for part 3, where the characters from part two will enter Yellowrose Town (another settlement similar to Moonpool). I would recommend this.
Also, this was just a thought, but I was wondering if they'd had already been established. One thing I wanted to do was have Reens fix up Beatbox before part 2. Basically Myra would've found him and let Reens fix up/tinker with it. It's possible that she could've done this elsewhere and then she and her family moved to Moonpool. This of course would imply that Myra and Reens met each other at some point before part 1.