Is this a good idea to invest in one of these? I am a complete newbie to the racing scene so I would like your thoughts please. I am on with converting my van to try and make it look something like a race home  

 and I feel that this extra space would help a lot as my van is big enough but not massive (insurance reasons, only a baby haha).
 The plan was to buy a decent small to medium size Marquee and anchor it to my van with pre made brackets to put up on the day?? 
 
   Thoughts please (serious thoughts) 
 Thanks 
 Scott