Elkmont Frame Defect

I would like feedback from those of you who have experienced problems with the tongue and frame on the 2009 Elkmont. We discovered broken welds and twists in our frame several weeks ago. Our insurance company hired an engineer whose report states that the problem is due to "gradual advancing cold cracks in the heat affected zone adjacent to the welds." We have tried numerous times to contact Trailmanor in Lake City, TN. through both email and phone messages. We don't have a dealer in MN. so we don't know who else to contact. I understand that there has been no recall but that Trailmanor can supply parts to fix the problem. I have not been able to get a person on the phone (only Voicemail) and no response to those messages or my emails. I have heard speculation that Trailmanor has gone out of business. Any help that can be supplied (phone numbers or other information) would be greatly appreciated.