Help please...

Hi,
I need some advive on my shasta rebuild.
i have the insidde all planned out,
BUT the closer i looked at the outside, i notice the side,s are bad shape.
so i am going to replace the wood, and aluminun skirting. im going to replace all the oustside aluminun.
heres my question, what does a person use to replace the the aluminun?
should i use the white hard plastic type material that u see on tool cargo trailors, or sheet the out side with new aluminun.
can a guy paint it as well? id like to paint some blue stripes.
im looking for a low cost reasonable type material.
all help, and advice wil be well apreciated.
God Bless Jeff. 
I need some advive on my shasta rebuild.

i have the insidde all planned out,
BUT the closer i looked at the outside, i notice the side,s are bad shape.
so i am going to replace the wood, and aluminun skirting. im going to replace all the oustside aluminun.
heres my question, what does a person use to replace the the aluminun?
should i use the white hard plastic type material that u see on tool cargo trailors, or sheet the out side with new aluminun.
can a guy paint it as well? id like to paint some blue stripes.
im looking for a low cost reasonable type material.

all help, and advice wil be well apreciated.

