I have been repairing water damaged lower side rails and wall panels and am wondering if cost and time warrants repairing or just parting the unit out because of the age. Any suggestions appreciated! Cabinets, countertops, cushions are in great shape as in good exterior condition .New brakes and tires . All systems work. Have right side and front already finished left Side apart down to metal frame. Reluctantly Already purchased a new rv can't stop camping!