Karma was a bit of an underground hit back in the day, often used for/at parties, and played over and over. So a good clean first pressing might well be hard to come by.
OTOH, you can get a vintage first pressing in typical shape, go home, move the furniture out of the way and move some bigass pillows in, invite a bunch of people over, fire up the lava lamp and the smoke, and BOOM - instant authenticity!
For that, Side One is all you'll really need anyway, that will be the road more traveled through the years. So don't sweat condition!