Oh wow, you really pulled a number on that one. Unless they take pity and let you warranty it you will have to buy a new auger shaft.
They should have parts for the air filter cover.
The eskimo branded parts are available here
http://www.geteskimo.com/Foundations...sp?category=62
8" auger shaft appears to be $150 US plus shipping. Better to give them a call first before ordering parts locally.