Hi there anyone and everyone that could possibly help I've just recently come to need repairs to my guitar Dean Razorback, situation is came home one day and found my guitar with love chunks at the head stock and tail end as you can see from the pictures
all thanks to a younger sibling showing off to a girlfriend.

enough rattling on was wondering if you guys could help with suggesting on how to repair it such as paints, sand grits and such not as really would like to restore it to former glory


AS you can see bit of a chunk


he must thought i'll glue it and hope he does not notice

any help be much appreciated