I can do it if you like I have so some experience in escrowing campaign(signature, twitter, and facebook) and some bounty campaigns too. But of course, you can use some old and reputed escrow on this forum. Anyway sent you PM.
If I were you O.P I will choose bL4nkcode I review his escrowing service and he is indeed not just an escrow but also handling some of the payments in any bounty like in signature campaign of GexCrypto.