I am not sure at this time if I will make a more complete version for the marketplace. I have a version that works a bit different from what I’ve provided you guys but it is entangled in a lot of other code. I also very much prefer this to become something that we as a community can expand upon.
IF I do decide to make a version for the marketplace, it won’t be until another 8 months. I’m working on another UE4 project (which might be provided for free as well if I can finish it) that makes it possible for skeletal meshes to automatically adapt to any environment and interact with each other similar to ICO.
To answer your third question, the reason that you can’t find a place to donate to is because I never provided anyone with this information.
If you want to donate, I made this page for you: http://www.remcowillemsen.com/donate/ue4_charactercreator_donate.php
Thank you for considering it. It does help me.