Need Advice on my Fallout T45-D Power Armor Build

Ok so this is honestly my first build and I wanna do it right I've got the pep files, fiberglass, and all the stuff I need to build it but the paint. This is where I have a problem I've got maybe 2 options go with spray paint it or use acrylic paint in my psi airbrush. Any help anyone can give me would be really helpful.

How is your t45 coming

So I'd highly recommend using some type of foam for this one. Just due to the sheer amount of armor and the size of it. Just a thought! I want to see how this turns out though