It's do able, and it's not too bad as long as you follow the elsawin procedures exactly. Biggest hurdle is the crank pulley bolt, it's ridiculously tight. I spent 45 mins trying to get the thing to budge before I found a 3/4" drive socket that fitted an air impact wrench I had at work. My 1/2" gun didn't have the beef to shift it, and that will crack truck wheel nuts all day long.
Things can get a bit fiddly, the belt that runs between the cams can be tight to go on, but it does go on with a bit of fighting. Make sure you buy the belt and tensioner kit (genuine one) and a new water pump.
No special tools required, I used drill bits to lock up the cams and tipexed everything to make sure nothing moved while it was in bits
I wouldn't tackle this job without access to compressed air and air tools, just cos of the tightness of the pulley bolt.
And, check Elsawin for what bolts need replacing, from memory, the crank bolt has to be changed along with the top engine mount bolts.