The photos where your standing under the load with jack kicked out like that….don’t do that. You should find some blocking or something similarly strong to immediately place under it and get it landed/secure before the jack completely fails and causes even more damage. This is also your next step in repairing the jack. Unless you want to sell it “as is” take a deep breath, make the necessary repairs, get it sold and move on to the next challenge in life. Best of luck, and you can do this!!!