making a reflux still

[Conquistidor]

So ive been researching to make a reflux still. Only thing is that I cant find 2" or 3" copper pipe (except online for $50 US a foot). I was thinking about using ABS plastic. It seems like it might work... it is usable to about 82C, so within the range of ethanol (and is food safe). Let me know what you guys think about it.