Originally Posted by Tomguy

Timing chain is around $100 and takes about an hour to roll in. Two max, if you are slow and adjust the valves afterwards. That includes removing the fan so you can crank the engine, and removing the plugs.

The rails that will need replacing involve removing the alternator (pretty easy) to get at the right side rail, and removing the PS pump and mounting bracket (not so easy) on the driver's side. The rails add the majority of labor.