turbo 1.7 cdti astra h

Hi, guys. I want to upgrade my Astra so I can get around 200+ bhp. I decide to change the gearbox, clutch and the turbo. I know the basic thing about the whole work for changing those parts, but I miss the technical specs about them. I am not sure that the 6 gear gearbox and clutch from 1.7 or...

Hello! I found oil greese on the turbo intake hose, a some oil inside the hose that goes from turbo to IC. I wonder is that normalo or? what should i look more carefully? how to prevent any damage to the turbo if it it's a problem? :sus: many thanks!