Looking for 2 people to help with Thorn bounty

Okay, ive been trying a couple of days to get this done, but seem to get no where fast, the furthest ive been is Phogoths room thanks to the help of another guardian. Im 26 and can get so far on my own, but getting all the way is tricky. Im on most days from 10am till about 11pm UK time, i break around 6pm-7pm for dinner etc. Any help would be appreciated as this bounty is driving me insane, if you need it as well feel free to say so. PSN is same as my bungie. Thanks in advance and happy hunting :)