pad printing styrofoam cups

I am considering purchasing a pad printer to print my styrofoam cups. My store sells thousands of custom cups monthly. Other nearby stores do the same. We all have to order them and have them shipped. I believe that I could not only do my own, but wholesale to the other merchants.
I have no idea where to start, but I feel that this is a project which is something I could handle.
Any suggestions would be appreciated.

Please let me know the price and printing options. - (PRINTING ON FOAM PADS
1. Single colour,
2. Multi colour,
3. Design printing