Hi Logan.
it is tough to tell from the photos. The face plate looks a bit warped, maybe warming it in a hot water bath before attaching it may help to make it a bit more flexible, then hold its form in the attached position once cooled. With respect to the other parts, some sanding and Bondo may help to correct the imperfections.
Maybe try piecing it together with tape and grabbing some photos, so we can see how it looks somewhat assembled.