Is that you should definitly not get a croc monitor. I don't know whether you've owned other monitors or not, but if you haven't a croc is the worst possible start you can get. It doesn't matter how many snakes, lizards, trutles or even alligators you've owned. If you haven't owned something along the lines of a blackthroat or a water for at least 3-5 years then your not ready for a croc.
I wouldn't say its because your in danger of getting injured(bitten,scratched... and you definitly are). The bigger problem is that you are in danger of not providing this monitor with what it needs. See the majority of us reptile enthusiasts have that trait of being "impulse buyers" I don't care who you are if your into reptiles you have probly had an impulse buy or two at one point in your life.
I've done this alot in my life. Getting boas that get up to 10 feet long when i was too young, bearded dragons, iguanas, pythons, turtles ect. Now when i was young i would set my mind on these animals and get them no matter what. But i never had trouble with any of these guys. Each of these animals were taking care of properly, none died, all healthy. And not one of them ever stressed me out or put me in a situation where i was asking myself "what am i doing wrong? What am i doing wrong?" (Which i asked myself many times with my water monitor.)
Then one day i realized "hey.... now that i'm 18 i think i want to get a water monitor" Having studied this species since a child i was truly fascinated with them and picked one up at a local reptile show. MY god i had no idea what i was getting into.
I never had an animal that could be stressed so easily. Never had an animal that would turn down food just to avoid me and would rather let itself die. Never knew the true meaning of cleaning a gigantic water bowl filled with fecies every single day. Had to leave a day light on all night long just so she could come out and comfortably bask while i was asleep. Monitors are trouble, and the croc monitor the king daddy of them all will be no better.
I don't know the exact size these guys can reach but i believe its up to 10 feet? I have had my water monitor for about a year now. Shes kept in a 7 foot long cage with two big water dishes, deep substrate, a wood top to keep heat/humidity in, 4 lights across the top one that is day glow by the basking spot. Shes only about a year old and im working on her 12'x 12'x 6' high wooden cage because the 7 foot tank isnt big enough. And my water monitor is a smaller monitor then a croc.
These guys eat ALOT! They crap ALOT! They require ALOT! And they'll end up costing you A WHOLE HELL OF ALOT! I have learned to maintain the husbandry of my water just perfectly in her current tank and have learned how to behaive around her in order to keep her feeling secure. (again monitors are stressed very easily).
But very soon she'll be bigger, her claws will be bigger, her teeth will be bigger and she'll proboly hate me just as much as she does now. Her cage will also be bigger which will make the husbandry maintence twice as hard. These guys aren't lizards there monitors, which are completely different then any other reptile i've worked with. And if you really want one then regardless of how many times people tell you not to get one youll get one anyway. But about a year to two from now you'll remeber everyone in this forum telling you "no" and you'll whish you listened. Take this from me who had the same experience with the people in this forum just a year ago... and i'll admit now that i should have listened.
-----
2.3 Bearded Dragons
1.0 Pastel Ball Pythons (NERD Line)
0.0.1 Water Monitors
1.1 Pastel Red Tailed boa Het. for Albino
1.1 Yellow Ackie Monitors
And Counting...