Alright so I finished the van! Turns out the year was 1974. I followed the procedure I intended which was:
Wash
Clay
Color X
and m21

I just want to say that color X worked amazing! I am sure there would have been even more of a drastic visible change if it were a color other than white with a mint green stripe. Here are some pictures and by the way the owner was very pleased.

Before




The two spots on hood that were clayed yesterday

 

 

After Clay and Test spot of Color X

 

Afterward I forgot to take pictures so I took a few snap shots at the gas station while driving it back and then a few at his house. These photos do not do the van justice as they looked a lot better in person. Also there were spots of rust on the van which we could do nothing about. So here are the few pictures that I could get

 

It doesn't look too amazing but it looks a lot better if you compare it to before



It was definitely a new item for me since it was my first SS and overall I was fairly impressed with myself as was the owner. Not the greatest color either but hey it was an experience

 

Looks fantastic, Andrew!!! Great work considering what you had to work with!

Dontcha love SS paint? Its amazing how taking off that top layer really brings back the life into it...

 

It was pretty cool how well the color x worked. It also exposed some of the imperfections in the paint once we used it, but I think it looks a heck of a lot better with its color restored now.

 

I really think the time is ripe to bring back mint green as an accent color on vehicles.....

 

Nice job

 

Aw now you killed it for me, I was going to get a the mint green stripe on my truck with a pink pin stripe. Then on my way there, stop and get some polyester, hooray!

 

Looks brand new almost! Very nice work man.