Processing E6 at home frankly isn't worth the time or effort. Unless of course you are processing in excess of 100 rolls or so per month. Cost wise you'd need to spend at least $100-200 for a basic E6 hardware (similar to b/w film developing, ie: tank, thermometer, film clips etc) plus the cost of the E6 chemistry.
Now for the bad news, E6 is highly intolerant to temperature fluctuations, so it really should be done in a processor like a Jobo, those btw, start at nearly 1000 SGD and go up from there.