Ironsled77,
Well the length of the spacers you put on the damper rods is the amount of drop you'll get. So you want 2 7/8" spacers there. Since you are taking out about half of your travel (I mentioned before that I thought there was about 4" of travel, but have since read it's closer to 6"

) you'll need to stiffen up your springs so you don't bottom out all the time.. The interesting part about this is since there are no spacers on the top of the springs, you have to cut (shorten) the springs (which will increase the spring rate) just to get the caps back on and not have a ton of preload. If you have time, I would add the proper length spacers on the damper rods, then cut the springs just as much as you have to in order to get the caps back on. Then check your sag and ride the bike to see if you feel like you need to increase the spring rate some more. If you need to increase the spring rate (it feels soft) and you need to need to decrease preload (not enough sag), then cut more off the springs (only up to 2 7/8" though). If the preload is good, but you want to increase the spring rate, you can cut some more off the springs, but then add a spacer on top of the springs to equal to the amount you just cut off. Keep doing this until the spring rate is good. If you try to stiffen the springs too much using this method, you'll eventually run into coil bind, but that probably won't happen with half the travel of your forks.
If you don't have time to mess around much. I would just add the 2 7/8" spacers, then cut 2 3/8" off the springs and put it all back together and mess with it later when you have time.
Also, since you will be stiffening the springs, and your sag will be less than before because of more preload, the realized drop will be slightly less than the length of the spacer you put under the damper rods. This should be fairly insignificant though (I think)