Justification Through Works In Galatians 5:6?

I've been having a lengthy discussion about justification with a Roman Catholic. See the comments section of the thread here. We've discussed whether Galatians 5:6 is referring to justification through works. We've also discussed whether the inclusion of something like repentance or love in saving faith allows us to include other things, like baptism, as a means of justification. We also get into a lot of other topics.