1988 Toyota Corolla

I have oil leaking along the distributor shaft into the cap, then out and onto the trans and ground. I've already had the distributor off and replaced the o-ring on the shaft, but I'm told there is another o-ring or seal on the shaft. I'm pretty sure this is the oil leak, is it do-able? I'm pretty handy but not much experience on Toyotas (not that their distributors are any different than other cars).

Next, left side power steering rack seal is bad. Can the seal be replaced without taking the rack out of the car, does it make sense to replace only one seal or should I put in a reman rack?