Louis,
While Jackson Center is closer, it will also be more expensive. I have had
very good experience with Ace Fogdall RV (an Airstream dealer for 40 some
years) in Cedar Falls Iowa. Their number is 800-747-0747. You may wish to
give them both a call. However I will say this is their BUSY season. Neither
one is likely to WANT to do the major work that you want to have done NOW.
They would most likely be more receptive to doing the work next winter
during their slow season.
Scott Scheuermann