First results...

OK, the first surface brightness fit is ready to go.  There will probably be issues with it down the road, but this was my first shot.  Note that the fit uses the BARE-GR-B model from Zubko, Dwek & Arendt (2004) as the dust model.  There is clearly some problem at small angles - perhaps due to a problem with the PSF, perhaps it's saying something about where the dust is.  This is the point where things get interesting.