Spark messenger collaboration plugin for remote control

Hi, I need plugin for open source messenger Spark:([login to view URL]) Our Spark messenger need integration for remote control. We need a PLUGIN who provides solution of desktop sharing and remote control. The idea is, that user1 allows with our Spark messenger to user2 (who is chatting with him over Spark) for remote control. We need this as a plugin for Spark. You can use VNC as solution, but I can also provide you script for remote control written in java. Your job is to make full working plugin for Spark with this feature. I need full working plugin with source code! Only bid if you have experience in messengers and plugins, and show me what you did before! I will only pay via GAF escrow.