Wow! I wonder how many cars they dropped down a flight of stairs before they figured that design out.... That thing is dope!
On with your question. Can you build it? Well, can you? I get the feeling that since you gotta ask that it is probably a little out of your league to fabricate something that nice. Wich brings me to the other half of your question. Can you buy it? Hell yeah! Some one built it for X amount of dollars so as long as you can afford it buy it! If you can't, bang an old lady that can afford to buy it. Because that thing is bitchin'!