Looks like the build is going well. A few points though. Even though the different colored suspension parts may look neat, they are not accurate. All of the underside is sprayed forest green, just like the rest of the hull. There are not different colors for the differentials and steering arms, or any other parts.
The rear light lenses should be all red. There is no clear back-up light on them. The light colored slits below the lenses are part of the black-out drive system and have a couple small slits that glow red to guide a following vehicle in low light conditions.
The fuel can (mounted on the left side) should be a darker khaki brown color, not sand.
The water cans san be found in sand, black, or (less common) dark green.
It is looking good. Keep up the good work and keep us posted.