My coilovers have the dampening adjustment screw ontop of the tower where the TEMS hats would go. The tool I got with my coilovers was for adjusting the height of the ride. No idea how that would work for shocks and springs though.
But yeah sway bars take out a large ammount of body roll, only issue afterwards might be your plastic end links breaking so you might want to look into replacing those next. They will be almost as much as the sway bars, but considering you can prolly get the sway bars shipped to your door for under 300$ another 200$ for end links isn't bad. I think DM even sells cheap nylon ones for like 50$