the monitor will come out of the bezel no problem, you just have to be carefull and remount the pc boards behind it, the length of the cables attaching it will determine how far away you can mount it.
generally the best looking fit will be from modifying a double din dash kit, or completely building one from scratch. dash kits are the way i start, it allows you to hack up a $20 part instead of your screen or factory deck.
http://www.metraonline.com/productsl.aspx?s=3302
you can also search for screen dimensions, almost every lilliput or xenarc has been ripped down to bare bones and examined on this site. you're probably not going to be hacking up the bezel around the factory radio, so those dimensions you have above are it. i managed to install a bigger screen (lillliput 889) by taking it apart