Hi IsoVirtual_Chris,
Were you eventually able to get your project to package out UE4.7? If so, what did you do to get it to work? If not, please let us know and we will try to assist you. Looking at your logs, it looks as though not all of your packages were completely loading, thus causing the editor to fail to package your project -but that is a quick, offhand assessment.
Either way, let us know the current state of your project.
Thannks,
.