I have often times thought about "porting" my ebox and installing an external 12v ducted fan to push air through it... but my fan is still working and every once in a while I pull the ebox cover and clean out what I can... not that it gets filthy per say or that you can really get to too much.
Yea, you hit air temps of 60c and have your fan crap out, would unfortunately just add to your resent stretch of bad luck - you shouldn't have said that