Space Game: Luminous Sky

Today I am abusing this thread to ask for a little bit of help.
I more or less finished the model of my first space ship. I played around with the material capabilties of the Unreal Engine but I have to admit that I am pretty much lost. The things I tried so far look even worse than the placeholder material.

I am looking for an effect like chipped-off paint at the edges of the model. Or maybe a general tutorial for materials. I already know the videos from Epic but they are not particular helpful for something like this.

Here is a picture of the model so far:

I would be grateful for any help.