It looks intimidating at first, but once you're at it, it's not that difficult. Removing the crackshaft pulley is probably the hardest part if you don't have the tools, but having a 625lbs/in air gun will help immensely. OEM timing belt has pre-marked pulley indexes which make timing alignment a snap.
Screw the mods!
Maintain the car in the conditions that it was designed for!