You don't have to send it anywhere. Just buy any Hall effect sensor type ignition and install it yourself. I have the same engine and I am running it on the FTL replacement ignition that Hobby King sells. It comes with a 14mm plug cap. I choose it because it was made by RCexel, which I like and trust.
All my Melody ignitions failed. But I did get several years use out of a couple of them.
You might want to get an ignition and a new hall sensor in one deal with a matching plug cap. I think I usually send people to Milton (rcextremepower). He's here on this site and very helpful. He used to sell RCexel but now carries the new and improved version. Here is his info
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