Access buildSrc dependencies from owner project

Is there a way to access dependencies of the buildSrc project from the owner project? I have a zip task in the root project, which creates a zip with all the buildscript dependencies so that I can run the project offline, but buildSrc dependencies are not included.

My current solution is to add a zip task to buildSrc/build.gradle, execute a GradleBuild task in the owner project to create a zip for the buildSrc project, then include the contents of that zip in the owner projects zip target.

Is there a better way?