..and now, ladies & gentlemen.. the most thrilling part : new vinyl on both cab' side  
 Ok,  I cut the first side shape, slightly bigger than the true dimension of course :

... hopefully, the amount of vinyl that I have is just enough for both side, well done Jas'  
  
 Here's the rest of the vinyl... I'll use it for seconde side l8ter :

Before applying the vinyl, I'll manually sand the side one more time with a thiny grain :

Here is how I'm fixing the vinyl. I can't do it alone, so... I'm calling "Darth Nunette"  to help me 
 I fix the lower part like this...

...I can now apply the upper part :

Now that the upper part is fixed, I can apply now the lower part like this :


Done  

  :

First side is... DONE  
 
... arg, I can't resist   
  
  
 
I'll fix it now... I'm choosing the right place for the side ( I've used some Space Ace side  pictures taken at the Jason's Lair to adjust it as best as possible ) :

Like the vinyl, I'll apply the side art sticker in two steps.
1 -> The lower part :

2 -> The rest... easy  
 
...and I finally remove the protecting layer :

...and there is it :
 
  
  