Printing Panoramic Images? Help Please.

[a_zeitler]

I need information on printing a panoramic image. What companies do people recommend that do very good photo work in a timely matter? I am trying to get this image printed in a 54.2" x 12.85" size. Other than printing these up on an inkjet printer that is for commercial use I have never printed up a panoramic photo. I would like something that is going to last a long time and is archival quality.