Oil leak

I’m dealing with almost the same thing. I just changed everything out because the cover was corroded and losing coolant. Got the car running and it’s leaking at the crank seal, now. Very frustrating!

My friend suggested to put the cover on loosely, install the balancer and then tighten the cover bolts. Then do the oil pan bolts, that way the cover seal is centered on the balancer. Opinions on this method?