It'll be fine. Clean up the mating surfaces between the pan and the block, use a shiny new gasket, and torque it down to the proper values and you should be good to go. The oil pan on my Benz looks like it went through WWII and it still works.

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2010 Mercedes E350 4Matic - 77k miles
1986.5 Nissan D21 V6 4x4 - 276k miles
1987 Mercedes 190D 2.5 Turbo - 3??k miles
1983 Mercedes 300SD turbo parts car
2017 Honda CBR500R - 15k miles
2016 Suzuki GSX S1000 - 9k miles