It's NOT stupid, it's doable, if you know how to maintain your car! Car had 198,000 miles on it.
Oak Harbor, WA, just north of Seattle, to Philiadelphia, PA via San Diego, New Orleans & Atlanta... 1974 Datsun 260Z, December 2, to December 6, 1982...pulling a motorcycle trailer with a bike on it....next?
Advice: Take your time, don't play speed racer, vary the speeds on the interstates and change your oil and filter before the trip and after.
Warren