Jon (
good name spelled correctly),
Welcome to our forum!
You will have to try again on those pictures. To post photos on this forum, you have to use a photo sharing website such as IMGUR.COM or TINYPIC.COM.
Pretty much on most grill restores, if you are trying for an almost new look you will need to repaint aluminum fireboxes and side pieces. This is certainly NOT the case for porcelain hoods (or of course stainless parts). For porcelain-covered hoods you want should use something like Simple Green and 0000 steel wool. Done correctly, you can make the porcelain look almost brand-new.
The painted aluminum, on the other hand, unless only mildly dirty is probably not going to come clean, at least appearance-wise. So, you will need to get all the grease off and look at high-temperature spray paints. For these parts that means VERY HIGH temperature paints. Unfortunately, the color choices aren't so great and the prices can be high. The Genesis that you are doing uses an unusual shade of medium gray that no one that I know has found a perfect match for. I have personally used VHT spray paint, using their Ford Gray. It is not perfect, but at least close. As long as you do ALL the aluminum trim in this same color, most people would never know. It certainly brightens things up to have fresh paint on these parts. Some others have opted to paint with black high heat, a more readily available color, or a dark gray.
Here is a Genesis that I painted the firebox and trim with the VHT Ford Gray:
Sorry the picture doesn't show more of the firebox. Here is an earlier version of the Genesis 300 I did where I also used the Ford Gray:
If you can, search some of the posts from the last year about Genesis restores and paint colors. I believe you will find some helpful ideas.