Ok, so it is specific "Stihl-eninge-mounting-how to you" are looking for? Sorry, it says nothing about it. This is something you have to work out by yourself, as i have done. Or trust in some luck not yet known to man that someone else has done the same with a similar engine to yours. I thought it might help you getting some ideas on how to arrange the clutch and such. After all, the engines are not that different.