Thanks! I'll try update this post in a few months about the durability, I've done a test piece which I'm going to leave outside and use different things like WD40 (any kind of cleaning type spray) to see what effects the paint.
And I did rattle can it, I used "Full dip" and plasti dip, 7 coats on average. And for the tank I used normal full dip black with a silver metalizer (3 coats)