I need 5 more strange coins and some help getting there.

I need 5 more strange coins in order to get the Helm of Inmost Light from Xur. The only way to ensure I get them in the next two days is by doing the level 28 version of the Weekly Heroic Strike. Is there anyone that would be willing to help? I am only at level 25, so there would probably be some level of babysitting. I am a Titan Defender, so I can be of at least a little use as I can use my shield to give protection at choke points on the battlefield and give either defensive or offensive bonuses if you pass through it. This might be asking too much, so I understand if there are no takers. Just a shot in the dark. EDIT: I should have put this before. I will not be able to be on again until Sunday around 7 PM CST.