CA glue is ok to use in my opinion. I would suggest the Gel type. The regular CA types are very Runny, and could lead you to unitended damage. The advantage of the gel type is it gives you a setup time, or small window to adjust. it is also gap filling which can become an advantage later on. I do not recommend CA glue for windshields or clear parts. Painting your tail lights before is what most modelers do, then attache with the epoxy, or craft glue such as Elmers white glue. When using epoxy it is critical to mix the correct amount ratio, then carefully apply to the desired part sparingly, wait a little to give it time to start to "Kick", or tack up, then move the part into position to avoid smearing.