water Need an auto-watering system for a 5 gallon Bucket

I'm going to be on vacation for a longer period than one of my watering cycles and it is going to be hard for me to fund a neighbor to help.
 
Can anyone suggest a good auto-watering system that I can use on my Chocolate Bhut, which is indoors in a 5 gallon bucket?  The medium is soil.
 
Thanks
 
When are you leaving for vacation, do you have time to wait for ebay? If yes I have a pretty decent solution, if not I also have a decent solution
 
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