I built a lightweight spray booth for my 32nd scale slot cars. I did a tutorial and showed how it went together. You can also download CorelDRAW and EPS files of the templates I used.
It isn't as nice as this beast, but it works well and it was a one-nighter kind of project.
http://slotcarillustrated.com/portal/forums/showthread.php?t=6074
Enjoy!
JohnGo