Selfmade Catwalks

Hey togehter!

I've got a problem.
I want to finish a track.
And I want to make selfmade catwalks(like these at "Black Halo".)

But all my attempts failed.
I didn't find anything at gOOgle or at other search machines.
Now I need a how-to. Can you help me??

Please answer fast, because its important for the track.
thanks!

Way i see that he did it, was export the track to 3ds (using the construction kit), and then build the catwalks in 3dmax or the likes..

But some people don't have construction kit and the link at gravimetric studios is followed by a page saying that you can't get it anymore.
If I didn't have CK I would probably build catwalks by designing just 3 stairs on one element and then putting a bunch of them together in the editor. (Try to be as accurate as possible though.)

i'll try that!
I've got the CK and Cinema 4D...I that will be enough to build the catwalks!

thanks for your answers!