gearbox removal, going to take mine out sat .because prob easier putting engine back as one.

Only thing you want to be aware of is youll need a substantial crane to cope with the engine and box in one.Your average home mechanics crane wont be very stable with that amount of weight on it.

its alright ive allready tacken the engine out but split the box ,but doing this on my own i thought it would be easier to take out box and put back inas one unit to make things easyer

I would'nt say that's any easier, adding in some extra work there. You just need to lower the engine in slowly and at an angle to get the nose lined up as it comes down.