I will propose a way to do this tomorrow, where I will send the BTC directly to the N2 guy and you claim it then, after I get the n2 coins you will then get the 0.01 BTC.
Can't do it today though, I am working now.
Make sure you only do this with trusted people then. Otherwise they can claim the N2 and just not send it to you (and now they have 0.02 BTC worth of N2 free that they can cash out). It's really running the same risk as just paying up front.