You don't have to remove the timing cover to replace the front seal!
I did it a few weeks ago.
Once the balancer was off I used a pair of Vise grips to grab the flange lip of the seal. I screwed the adjustment on the Vise grips as tight as it could get it and still be able to clamp the jaws shut. I clamped the Vise grips on with the release handle facing the radiator and rocked the backside of the Vise grips against the timing cover. A short prayer for divine intervention
and a big tug resulted in the seal prying loose on one side. Some more pressure on the Vise grips resulted in the seal prying loose. Since the balancer had spun and was in two pieces, I used the center part of the old balancer to drive the new seal in place. Coat the seal's metal shell with a little bit of blue silicone for leak protection.