Wow. We lived in Mira Mesa for a year. Early 80s.
I moved in on Dec 9, 1983. The purchase was done in August, but the owners needed time to line up their next home. I assumed a 13.25% loan that had been co-signed by the owner's parents. That slowed the process as well. By August 1985, I refinanced that loan to a 15 year, 10%. The house was on Handel Way.