Lessons in life learned from your troubles. Buy and learn how to use a wall thickness measuring device. When people do not give your simple information that you repeatedly ask for raise Hell or hear major warning bells. For ten grand expect service and goods delivered that meet or exceed expectations. If a gun needs major work after only 200-300 shells it should be returned. I am sorry but for that much money you have had very poor satisfaction and a gun with major warts. I could never look at that gun and not relive most if not all of your pain. Good luck and I hope your list of problems ends here and you have many years of happy enjoyment of this gun.
I suspect you will need to have the gun lined in England to fix your barrel problems. Thin walls may be deemed safe by some to shoot but I would not want anyone not elected to public office to shoot it. Like many home owners you are under water in this gun and will get more so before you are done. It can be fixed properly if you are willing to spend more money.
