You just bought the truck from the dealer, and you are going to go through all this trouble to remove them yourself, or pay someone to do this? Screw that! If it was me i would be back to the dealer, demand to either get me the right key, or put a new set of locking nuts on, with a new key. This is just my 2 cents.
I would not care if the dealer was a bunch of jerkoffs. I would sit there and watch them do it.
Why would you shell out the money to buy the tool, and do it yourself? Why would you bring it somewhere and pay to have it done? When the dealer must do it for free? I guess you have money to throw away.