5.9 magnum 2002

The correct balancer and flexplate are way cheaper than internally balancing the magnum.

Balancer:

http://www.scramspeed.com/Pro-Products-Street-Balancer-Small-Block-Mopar-p/scr59360a.htm

Flexplate: Seen them on Ebay for $50-60 bucks.

If you want to run the V-belt stuff on your magnum go here:
http://www.magnumswap.com/serpentine-or-v-belt/

The site has lots of other helpful Magnum info as well.