I also want to point out that it's a VERY easy change on the FIRE engine: they just don't come any easier. Lots of access, only one tensioner to slacken/remove, a mark on the camwheel at about 17 minutes-to-the-hour (lines up with notch in cylinder head below cam housing join), a flywheel notch that lines up with the forwardmost line on the bellhousing window, and the crank pulley can be unbolted with small bolts rather than some giant nut.
-Alex