The calibration that we're talking about here is not the normal ISF calibration as is done with CRTs...
The D-ILA requires a specific type of calibration that currently is the province of AVS forum member
William Phelps, and AVS Science's calibrator, Cliff; who uses Phelp's software.
AVS is probably the way to go for a G15 - they have good prices and if you ask for calibration;
they'll have Cliff calibrate it.
AVS is located in Rochester, NY which is at the western edge of the state of New York - but if
you're coming all the way from Brazil; what's a
few hundred miles.
For 4:3 material with the Panamorph - you can either rescale the 4:3 image so that it comes out
4:3 after the Panamorph compression. Or the Panamorph comes with a mounting rail that allows
you to slide it out of the light path. See:
http://www.visr.com/Panamorph.htm
As far as screens, you might want to check out the Stewart GrayHawk - a gray screen that optimizes the
contrast for digital projectors like the D-ILA. Click on the Stewart link at the top of any AVS
forum webpage.
Greg