unfortunately, its not an easy DIY task. I wouldnt recommend you doing this yourself if you are not experienced with timing chains. this job takes about 9-10 hrs, mainly because you will need to open the valve cover and loosen the chain tensioner, which will offset the chain's timing. then take off all of the accessories from the front of the engine that are in the way, including the crank pulley(for which you will need a shop duty air compressor and gun). then you will need to extract chain guide pins from the timing cover, for which you will need a special extractor, and at the same time hold the chain guides in place from the top of the engine. then the cover will need to be carefully removed not to rip the oil pan gasket, but its highly recommended that you replace it when taking off the timing cover. keep in mind, the cover does not use a gasket, it uses sealant on the back and a lip seal on the top. after you put it back on, you will need to set the timing on the chain.
nenad