This works. I bought a set of 450 shocks from a 2000, put them in the rear of my 1999, then moved the stock rear shocks to the front. As far as the bushings go, you can take the ones out of the old front shocks and reuse them in the rear shocks.
Thanks for the suggestion. I now have that extra lift I was looking for, it makes the foreman look very nice.
The only thing that I would add is that you will need some way to compress the front shocks to get them lined up, they are about 1 1/2 inches longer. I fought with mine as i had no tool, i ended up using a jack.