Panasonic Panorama (Wow!)

I live in the Santa Cruz area spend quite a bit of time photographing the sufers, the ocean and the areas around the Santa Cruz Beach Boardwalk.  I've been experimenting with stiching multiple photos together using the "Photomerge" function in Photoshop CS5, and wanted to capture the entire length of the Boardwalk in a high-definition panorama image.  From the Municipal Wharf I took 10 overlapping photos, and the attached image is the PS Photomerge result.  I hope the file is not too large for you to take a closer look, but I was blown away how sharp this image came out.  Every so often, I am surprised at the IQ of my so-called "pin head" camera.  Under certain lighting conditions, that Leica lens on the FZ200 can match (and maybe exceed) what my Nikon D5100 can do.  Perhaps the Photomerge feature also improves the final image, but as you can see, even at 100% the images are distinct with no CA even on contrasting edges.

I would love to find a way to print this panorama at full size, but the native image size is 90 inches X 9 inches!  I presume a specialty print shop can do it, but no doubt it's going to be expensive.  I guess the other way would be to split it up into a panel of 3 separate prints of 30" X 9" and hope the edges can be perfectly lined up.  I would welcome any suggestions you might have.