They're molded plastic Was thinking about grinding them down, but here's what stopped me:
I did the ol' rubbing alcohol / cornstarch trick to find the cooling elements on the top of the unit. Let the fridge run for about a half hour with the door open. The sides of the unit were pretty darn warm, but the top was cool to the touch and no evaporation lines were left. So, I'm pretty sure that the sides of the unit have the coolant lines, but the top has none. Thus, I'm shying away from doing any kind of work to the sides of the unit.
Snapped three pics:
http://imgur.com/mWue6
http://imgur.com/MUPBk
http://imgur.com/wEvR3
For the pic of the whole interior of the fridge, that white thing in the upper left corner is a P.O.S. outdoor thermometer.
Other notes about this fridge: The plastic top easily comes off by removing the three screws in the back, then lifting the plastic up just enough to clear the edge, and then push the plastic forward towards the front of the fridge. Also, the door is reversible (movable so that it opens to the left).
Will check in occasionally for more questions.