Help With G2

Hi all. A couple friends and I were hoping to do G1 and G2, one after the other, tomorrow night sometime. G1 is fine, as we feel confident about making it with sneak/invis.

G2, however, we're not as confident about, so I was curious if either a) there were a few other people trying to get G2 finished and we'd go together (and thus be able to defeat the NMs) -OR- if anyone would be able to help us who has completed it and is a higher level.

Thank you very much!