mark 826.thanks for the info first of all. the project will more than likely take place after xmas but in the mean time ill spend some effort in checking that the gearbox to engine mating face will actually fit ensuring all the bolt holes and locating dowels (if there is any )are the same on the st 170 to the standard 2ltr. if this is the case then ill continue picking up the parts that you mentioned and any others that i can think of.
once its completed then ill give feedback in the forum.
thanks once again.