It can certainly be frustrating to find things not as you expected when you make a major purchase. It easy to remark that the purchase inspection should have caught those things. People forget that there are a thousand things to check and it is not always possible to spend the time in the middle of making the deal.
BobGed makes a good suggestion to find a good service center or make a trip to Red Bay. Hopefully you have a bit of a contingency fund to cover it. Or, if you have more time than money (retired), maybe finding help at a campground is possible. Many campers (old guys) share common traits of possessing experience, time, and tools. Maybe you will make some friends at the same time.
Good luck.