The large balancing cones may or may not work. I looked at another Niken today and the wheel centers aren't round. They have a bump where each bolt is located.
Lifting by placing a rod of some sort between the forks will definitely not work. Brake and ABS lines are in the way if you use the top set of clamps and the wheels are in the way of the lower set.
Using the center stand and tying down the back of the bike would work. The dealer suggested lifting by the bars, as I mentioned earlier, or tipping the bike to the side and changing one wheel at a time. Once you reach 45 degrees of lean the outside wheel will lift. I guess if you could find a safe way to support the bike that way that would work.