MobileHomePark, we have painted numerous metal-sided 1970 and 1980 Mobile Homes.
First make sure that each home gets a good power washing before painting.
As for paint colors we have used white, beige, and light blue.
For the shutters we use high gloss black. However, we did use high gloss hunter green for another Mobile Home that had a green metal roof.
After we paint the Mobile Homes we have new, wooden stairs professionally built on-site for all exterior doors.
In addition we have new, white, vinyl underskirting professionally installed.
The Mobile Homes that have a visible variation between the painted, metal exterior and the white, vinyl siding are my favorites (like the beige).
The white paint is nice but there is little to no variation (depends on the whites being used) between the painted, metal exterior and the white, vinyl siding.
We wish you the very best!