When turbo goes, does anything else go as well?
#4
Turbos (pair) will set you back about $2.5k and labor is about $1k if you find an independent shop.
When the turbo dies, it could destroy the O2 sensor, catalytic converter, downpipe and egt sensor. Don't you have warranty? What mileage?
#5
turbos and timing belt makes the 4.2 seem a decent choice ;-)...
although turbos have been lasting longer than in the old days of pre water cooled and after engine shut off cooling. I used to consider turbos like tires and batteries- a wear item that will need replacing. Now they seem capable of lasting the life of the engine, with chipping maybe having an effect of shortening life somewhat. Synthetic oil must help. Good luck!