I would replace both belts to be on the safe side, and be sure to check your tensioners while they are off. With the flywheel at the center III mark, line up the passenger side cam sprocket timing mark with the notch in the rear timing cover. Should be straight up. Put the belt on and adjust tensioner to proper setting then tighten the bolt. Now rotate the crank 1 full revolution. You should be back at the center III mark, with the passenger cam sprocket now pointed straight down. Line up the driver cam sprocket timing mark with the notch in the back cover (straight up). Put the belt on and then adjust the tensioner to spec then tighten the bolt. Now I usually rotate the crank atleast 2 full revolutions by hand, then realign the center III mark on the flywheel and check the cam marks. One should be straight up aligning with the notch in the back cover, and the other straight down. Recheck belt tension and you are good to go.
Also, the cam seals can be done in the car as they are removed from the front as an assembly. Simply pull the timing covers (which you will already have off), then both cam sprockets have to be removed. You will need something to hold the cam sprockets in place when you break the bolts loose to remove them. I would recommend lining up the sprockets as if you were doing the timing belts first, or atleast mark them in reference to the back cover for when it is reinstalled. Remove the back timing covers on both sides, then you can pull the cam seal housing off (3 bolts if I remember correctly). This is also the best time to check that water pump in the vehicle. There is an o-ring on the pipe that seats in the side of the water pump your hose connects to that is notorious for leaking on these. You can also check for excessive free play or rough bearings in the pump, along with any potential leaks. That o-ring would be my first suspicion. Then simply reinstall your cam seal housings, back covers, cam sprockets, and the timing belts as mentioned above.
Another note, since you had one of the belts break, if you get your timing belts aligned and then go to start it and it fails to start, don't fear just yet. You may have to rotate the distributor 180 degrees ( it may be 180 degrees out of time. This sometimes happens with these when a belt breaks and the belts are replaced opposite of how they where before. Ex. pass belt was straight up, driver straight down before, now pass straight down, driver straight up). This is a non interference engine so even if you slip up somewhere, you shouldnt damage valves, piston, etc like interference motors.
Best of luck with it, and keep enjoying that vehicle. They are awesome.