If it's that close to your house, and you haven't really known about it until recently, I would just go and use it as a side project. Cut off anything you can at first that is manageable to carry by hand or wagon. Then you can work on cutting up larger pieces when you have spare time.
I have run extension cords a few hundred feet before to use my angle grinder to cut up some storm drains that had been buried in a privately owned landfill for 30 years. Start a slice hole with a grinder and then use a sawzall when you can the most. Saves you a lot of discs.
I personally don't have access to any heavy machinery, and don't like to pay out to someone else when I could just do it myself, even if it takes longer to do. I just cut it up a I can and go from there.
When you have a lot of time on your hands, a little hard work for a little bit of metal can't hurt anything.
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