I'm getting ready to attempt essentially the same thing- stuff a 7" Lili into a 1 DIN housing. soundman98 posted a couple of links to a pseudo-similar project done by coucouillu that required a bit more fabrication than I'm hoping for, but came out well. Links are in this thread:
http://www.mp3car.com/vbulletin/lcd-...-viewable.html
Presently, I am leaning towards purchasing an old or broken 1 DIN DVD player (with monitor) and gutting it out, using only the mechanical portion and transplanting the glass and electronics of the Lili monitor I just purchased into the chassis of the DVD player. Hopefully I'll be posting build pics here before too long.