Could phone around and see if any garages have a transporter down that way but thats a bit boring.

Just get a one way hire from avis.Leave friday night around 12-1am pick up the turbo saterday morning, get a mate to drive the hire car from erst location to heathrow. Dump said hire car and take it easy driving the turbo up the road.

8-9 hours coming up the road (unless it breaks) should do it, need two of you though.

Also good for a laugh me and my mate seam to be making the trip alot in the past few years. Always a adventure