Heh, I was just about to post that link ^^
Having been attempting to do this quest alone (damn time zones!) for over an hour and having a grand total of two cards! I can say this is the most annoying quest ever.
It's just like mining, except less profitable and more frustrating. And if you don't like having mining points snatched out from under your nose, I really don't advise playing this quest! (and I'm not just talking about the gobs)
Perhaps it was mainly due to playing on my own and the fact that there were too many people in S Gusty taking the soils too fast, but I really wasn't enjoying myself. I tried heading up to Konschtat Highlands, but didn't see a single soil up there!
Still, if you wanna give it a go, good luck. To be honest, the only item I'm interested in is the mandragora belt for sh*ts and giggles and so I don't think it's worth the hassle.
It is kinda cool seeing Gobs ride areound on bocos though.
http://img.photobucket.com/albums/v292/rasenx/gobboco2.jpg
http://img.photobucket.com/albums/v292/rasenx/gobboco.jpg