It is misleading... It is a Pro.15 chassis setup with wide arms. You can clearly see it has the black .15/2.5 transmission, Pro.15 throttle linkage and it has never had the chassis drilled to install the throttle bellcrank for the 2.5/3.3 engine.
It depends on how much it is bid up to whether it is a good deal or not.
$100.00 is much too steep IMO.