AvLeak recently published a picture of 'Senior Peg', Lockheed's competitor in the competition that eventually led to the B-2 Spirit.
It's not clear if this picture is of a manned demonstrator, RCS model or something else, but it looks to me as if it is an image of hardware rather than an artist's impression. The Aviation Week picture online needs a subscription to view, but
here's an alternative source. .However, the
story is online here.)
Also printed in the same issue are pictures of a DC-130 carrying 'Senior Prom', a stealthy cruise missile prototype/unmanned reconnaissance aircraft. Those pics can also be found on the web:
Senior Prom