This the guitar project i'm working on

The problem is that the front is very cracked from heat. I wanted to know if i could throw on a top coat and sand it out so that the top is very smooth. Is this ok for the guitar.

This guitar is eko and i don't know what the finish is on it. Is there any way to tell.
Even if you clear coat over that it's not going to hide the crack in the finish.
If they're not too bad you can try and drop fill them with crazy glue and then lightly sand them