Thanks for the replies all.
I spoke in person to the service manager this morning. Conveniently, my car was in the first bay, so I was able to show him what the proposed three hours of work entailed. I politely voiced my concerns, to which he said he'd double check the listed estimated work time. The tech that quoted the work was not there.
Appartently, an estimated time for the rear main and oil separator as an add-on to a clutch job, etc was not listed. We agreed that 0.5hr was a fair estimate to perform the work.
Also, the "seep" was very minor. The rear main was moist with seepage that did not extend down to the bottom of the housing. Same for the separator. If the tech gets reprimanded, I hope he doesn't take it out on the new seals.
Thanks again...