i was half kidding.. i agree it would not be easy. but lets think for a second about the world of custom built motorcycles. a person with above average mechanical fabrication skills,the right tools could do this for a fraction of the cost of a studio rig. am i convinced it can be done? hell yeah!! have a look. http://www.youtube.com/watch?v=mgIv1q7zqlA

this is just the first 1 i saw. there are more. btw that is a ladder he used for the track. this rig could be built for about $1000.00 us. the kid that built it wanted to sell it for $5000.