Epson 3800 and 17" x 25" paper?

Hi,

A friend and I are thinking about getting a 3800, but would want to print on 17" x 25" sheet paper, mostly premium luster and enhanced matte paper types.

Strangely, Epson does not make this size paper! Have any of you had success with this size paper from other manufacturers? Are there good profiles available for those papers, so that prints come out close to what you see on a calibrated monitor?

Also, what is your printing cost per square foot?

Any help much appreciated!
--
Paul Richman
http://PixelsByPaul.COM