In the UK you only have to leave something on the pavement and scrap metal hunters will come by and take it ... seems like there has to be a net gain to scrapping this much metal - if it were a ship then salvage companies would have had it already.
I'm surprised that they didn't post a guard there with clean up duty to at least keep it all from rusting in to the ground.
Wonder how much it would be to buy and whether you could get enough visitors to the "secret Russian space base" to make it pay.