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...FWIW, Raleigh recycled the name "Record Ace" a few times, and I have no idea (prior to your pictures you intend to post) what the 1979 version was. At least one of them was pretty nice, with a Reynolds 531 frame, but I think that was much earlier than 1979. The Raleigh Sports it the Raleigh Sports.
I rode a series of them around town in D.C., Minneapolis, and Sacramento back when they were ubiquitous in thrift stores, because everyone wanted a ten speed. There's a spot out at the landfill here off Kiefer Blvd, where they used to toss all the ones they got into a big pile, and then grade dirt over them every couple of years. That was where I got all of my hub repair parts, until they closed the place down.
*sigh* But it's probably a mistake to try to do a direct comparison with anything else.
You can make up the money you lose on individual bike flips by increasing your sales volume.