I have updated the kfs-public POM by overriding the kuali <distributionManagement /> section. Since you cannot actually remove anything out of it, I have overridden the repositories so they will point to maven central instead of nexus.
Upon installation, it looks something like this:
This eliminates the problem with the AWS security. Also, kudos to Travis Schneeberger for the suggestion of pointing to Maven Central. My inclination was actually to point to a local repository. After deliberating on it, I realized that people would probably not be too happy about that.