Looking for a gr8 WPMUDEV consultant

So I have tried elance and odesk without major luck. I am really looking for someone who knows WPMS and have setup and run clients sites via this WPMS network.

We have been spending $$ trying to make everything work without major luck. Many support tickets for issues and especial slow websites.

We plan to continue using WPMDEV to run our network but really need someone from the community who has the above experience to help us manage our networks. We currently have about 20 websites we manage but it has stalled our growth due to the issues. Our idea is to manage 500 websites by 2014.

Would love to talk to anyone who may be interested or at least get your recommendation of gr8 places to look.