Is $450 a great price to replace a rear main seal on an old 2000 Honda Accord?

The dealer wants $1,400 for labor because they say it's an 11 hour job & they charge $125 per hour. But a local shop said they will do it for $450. My everyday mechanic wants $1,000. It's a lot of work because they have to drop the tranny. But for a 2000 accord with 150k miles which price point would you go with paying?

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