The below was sent in by Sergio Herencias:
I present you, my Lego Ghostbusters HQ Custom MOC built.
Thanks to Brent Lego brings the GB Ecto-1 Set. I thought to myself- why not built the appropriate HQ.
I decided to built a hybrid between GB1 & GB2 and add more extras and details, lights, sound and other stuff.
The Floors(levels) are removable. Therefore, you had many freedoms for the interior and everything is easily accessible. I have already started the design concepts of various accessories and furniture.
If there is enough interest I will share my LDD File (build-plans) so other fans can build this GB-HQ.
The parts to built the HQ were ordered worldwide from over 12 shops at: www.bricklink.com
The Lights-System are from: http://www.lifelites.com