Can this help me on my path to Iron Cross?

I saw people using this ( http://www.gymsupply.com/images/products/detail/dgsct.jpg ) to help them with Iron Cross. I cant buy this equipment in my country. I can order it from Amazon, but shipment to my country will be to expensive. Can I do this ( see video below ) as substitution?

All comments are welcome. Sorry for bad English.

Iron Cross Progress.wmv

That is a reasonable way to gradually increase the difficulty of a cross. 

 

You need to be very careful to make sure your elbows and biceps are properly prepared before increasing the difficulty too much. 

Thank you   This is only idea. I only wanted to know is it good or bad. I'm still far away from serious training cross.