Are there RV salvage yards or other sources for RV parts?
There are so many different RVs that it really is not worth while to salvage the parts. They just get traded and go downhill until they fall apart and get shredded. You can buy universal parts for much of an RV or even replace most of the interior items. Check with an RV sales place that sells your model and you might be able to order the specific part you need. Just like a car.