A few months ago, I posted my 1984 Univega Specialissima on Craigslist, thinking I'd sell it and begin a new project.
Instead, a potential buyer commissioned me to refurbish a Mixte frame Univega Custom Ten she'd purchased, since my Specialissima was not the correct frame size for her.
The bike was pretty rough - the brazing for the rear brake support had cracked, most of the drivetrain was old, steel, and rusted.
In the end, the build went relatively quickly, I think because someone was actually waiting for it unlike my usual routine in which I slowly build a bike over several months.
I wish now I'd weighed it, as we ended up replacing almost everything except the frame with alloy parts, and I imagine the weight savings was substantial.