Where's the best place to get the complete kit for my 4x4 sapph and how much do you think it would cost at a specialist to modify box and fit it?

 

Reyland is the man to supply it.

You will need someone to weld the lug on the clutch arm and drill the box I think, I know reyland has people near him and Bara could do it.

If you go centre push then you don't need to mod the box, just take the box out and fit it as far as I am away (you may need to drill the box to let the clutch cable come out.

 

What do you mean weld a lug on clutch arm??

 

Yup. I do have a spare reyland slave (external) and the weld on bit so you could just source the master and get a pipe made up?