I have a '78 Chevy K10 with a plow on it. I bought it from a neighbor (without the plow) for $400 about 12 years ago. I had the plow to put on it.
I don't bother with plates or insurance on it, just use it off road around the farm for plowing snow, cutting firewood, deer hunting, ets. I don't even know when was the last time the transfer case was shifted out of low.
It looks about like what you'd expect a '78 Chevy to look like, but it's perfectly healthy mechanically. I don't know how many times over the years I've gotten my $400 worth out of the old gal.