Just thought I'd update this thread.
It turned out to be the Turbo as expected, I did buy a second hand Turbo from Dewsbury Auto salvage that supposed to only have done 40 odd k on the original car.
Mechanic fitted it, because all the oil went through the system it took more or less a full day to 'burn off' all the excess oil in the exhaust etc, basically there was oil everywhere and had to be cleaned or burned off.
Car seems okayish,slightly sluggish in low revs but I can live with it, my only concern is the Turbo sounds much more louder then the old one, like a 'wurring' sound, it is quite loud from cold but as the engine gets warmer it eases off, I know they do it but it's def loud from cold, so here's hoping it lasts me about 6 months because it's going then.