[gunslinger hideout] So I have saved the lumberjacks, the mechanic, reb…

[gunslinger hideout] So I have saved the lumberjacks, the mechanic, rebuilt the machine and destroyed some rocks infront off the cliff, opened the doors (rocks fell on the big button), but it doesn't continue, still says I have to destroy the rocks infront of the cliff....anyone know what to do??
And where can I hire a gunslinger?? Where is there hideout?

Is there a walkthrough already??