hi,
i would not waste the money to put another crt monitor back in. but that is me. i took mine out (it would have fit yours) but have since gotten rid of it.
the best resource around for this is Tim at
www.rvcams.com
i put in his best system and mounted the lcd panel next to the rearview mirror so it is in a more natural place. i also put in a new color camera for the backup camera and one color one on each side as sidevidw cameras. it makes it really nice for changing lanes.
with whatever you want to do, i would guess tim is the place to start.
tom