Scratch/Gouge repair?

I've been on this site for several weeks and I'm just starting to work on my 16' Lowe. I will be repainting and putting new decals on it. There are a few deep gouges and scrapes from the previous owner loading the boat with an exposed screw sticking out of the bunk board. Please take a look at the attached picture (worst of the scrapes) and let me know if I should just use bondo or something like lab metal. Any guidance/assistance is greatly appreciated!

I think the best fix that would be permanent would be to have it welded/grinded smooth.

You'll have a hard time getting a bondo type solution to stay put there for long if it doesn't have some flexing properties.