That’s fantastic! How did he find so many gray Legos?
Lego has a website and most importantly, they have a CAD program where you can design and assemble the plan in 3d.
It is a truly remarkable program
That's one way to get Legos. I don't know what happened to "BrickBay," though. Maybe eBay had a problem with it. There are lots of Lego sales on there too, but not on the scale of individual bricks.
He (I am sure) picked them up on a site called Bricklink (www.bricklink.com). It is a site where you can buy and sell lego bricks. It would be impossible to get large amounts of bricks from Lego (you can buy some bricks in bulk but it is expensive and they do not offer all colors and shapes).