So, I have a war project with several dependent jars that are not available in any repository. Up until recently, I\'d been keeping them in src/main/webapp/WEB-INF/lib
I think the best solution in your case would be to setup an internal repository. There is no need to setup whole Nexus at first. Any simple webserver will be sufficient or shared folder somewhere.
Check the Maven DOC on howto set up an internal repository.