>>Due plan as this monitor grows to have "free run" of the
>>house. Is one more inclined to climb and tear things
>>apart, whatever you can provide will be of great assitance.
I have found, from direct personal experience, that free run monitors are a disaster, both for the house and for the monitor. These are very powerful animals that can get just about everywhere and will cause a surprising amount of destruction. They can, for example, dig holes in your drywall, and will take to creatively re-arranging your living space in ways you never intended (by, for example, taking shelter behind a bookshelf, casually flexing a bit, and knocking over the shelves and everything on them). They are not toilet-trainable. And, in my experience, monitors of all types have a strange predilection for attacking toes and bare feet (don't ask me why, I've just experienced it on a number of occasions).
Further, conditions optimal for human habitability are not optimal for a thriving monitor - too dry and too cold. Keeping your house under conditions that will keep your monitors happy will rot your house out. Really, I've had it happen to me. Further, human houses do not provide the necessary requirements for a proper burrow.
So, for both your own sake and that of your animals - keep them in an appropriate enclosure.
I have made a number of mistakes in the past with regards to keeping monitors. This is your chance to learn from my mistakes, rather than repeating them yourself. Save yourself the trouble, heartache, and expense and don't have free roaming monitor lizards in your house.
Luke