I have a 2004 SSV which is basically the same boat except for the tower. Here is the set up I run for mine:
Bow - 1000 lbs
I have 200 lbs of rubber coated iron weight lifting plates underneather the side cusions. In the locker I have a custom made sac that fills up every inch of space except for the last 18 inches or so at the very front of the bow. This sac cubes out to weigh around 800 lbs.
Stern - 1100-1600 lbs
I had two custom sacs made to the exact dimensions of the GG rear sacs (42x19x19). These cube out to be 545 lbs each. However, that is only if the sacs were to fill exactly to the seams. Since they stretch out past the seams when completely filled, it's estimated that they weigh close to 800 lbs each.
That is pretty much it. I don't use any additional sacs. Just the 2100-2600 lbs at the flip of a switch. Here are some pics with this set up. All the sacs are full and there are two adults in the boat and one in tow. The picture with the invert is with the wake plate 3/4 up. The other one is with the plate all the way down.