There's something about monitors (more than some of the obvious similarities) that attracts us snake people to them. I'm a snake guy, Sonya's a snake gal, FR's a snake guy, and so are many more people here.
But on the flip side of that, monitors are a world apart. Most don't tolerate being handled the way snakes do. Monitors don't make good "pets". Yeah, once in a great while we see an exception to the norm that causes us to think that it's possible. Hitting the lottery jackpot is possible, too.
I'm not trying to be sarcastic in any way whatsoever, just factual. I think most of us here, at one time or another, have thought the very same way you're thinking. I have. I just want you to be correctly informed, that's all. 
Sonya nailed it in her last sentence of her first reply: "You have just as good a chance of getting another just like it at whatever age.....or making it that way depending on what you do with it."
In other words, it takes the same patience, techniques, to get a younger one to a handleable stage that it takes to get a 1-footer there. The one you have may take a bit longer to get there versus a younger one with the same disposition. The only thing is, if you get a younger one, it could easily have more of a pissy disposition.
I'm not saying that you shouldn't do what you're planning on doing (trading), I'm just trying to let you know how big a word "if" is.
I wish you well in whatever you decide to do. 
Got any pics of the one you've got now?
Take care!
HH
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Due to political correctness run amuck,
this ol' hillbilly is now referred to as an:
Appalachian American