I would for sure invest in a sway bar, Rath Racing and Durablue make a few nice ones. Also the lower the quad the better, A lot of fellers run a shorter swingarm but you can get by fine with a stocker. Do you have aftermarket a arms?? If so you can set your camber, caster and toe for better turns.
Sounds good man, If you have any problems getting or finding a swaybar, Contact Daryl or Jennifer at Rath Racing they are the owners and will do what they can to satisfy your needs. I know they make them for 660's, 700's and Im almost certain banshees.