Cut off however much you want off the top of the forks, re-thread the inside edges so the fork caps will screw back in, and either cut down the springs to fit or find shorter ones to replace them with. If you cut your stock springs it will increase the spring rate making them stiffer.
Or you could find a smaller diameter wheel that will work on your bike, or lace up a smaller diameter rim to your stock hub.
If I were you, I'd stick with pushing the forks up in the triple trees.