I had to rebuild the heads on my 2000 a few years ago due to a broken timing belt bending a couple valves, it is a bit of a chore but with the help of the manual you should have no problems i also set up an account on autozones website just for the vehicle repair guides they pretty much walk you through the whole process and its free! i have a chilton manual but the internet is so much faster lol. the bolt tightening sequence is tedious but other than that its pretty straight forward and i would def recommend replacing timing belt and tension-er , water pump, and thermostat while your in there as well as double and triple check that you have the timing belt on correctly that made me super nervous because if you do not have it on correctly you can ruin your motor!