Unbuilt Heathkits are kind of a cult item.
I kind of wonder if they'll ever be built, since they appear to be worth
so much more unassembled these days.
My guess is that most of them are bought by people who care about things
like the original packaging, and will never get built. A great pity, they
were intended to be built, and buildign them is fun.
All I can say is that if I ever got an unassembled Heathkit, the first
thing I'd do is read the manual, the second thing I'd do is build it!
-tony