Part hunting for timing chain job

So I'm trying to get a good recommendation on a stock timing gear replacement and what other things i'd need to do the job. Far as I know this is a 120k mile stock slant 6 car. Based on the sludge in the valvetrain I figure not really well maintained? could be wrong. But anyway. What sort of parts do I need to buy to do the full replacement? Would I need a new damper? Any recommendations would be helpful. Im pretty mechanically inclined but still new to this type of maintenance job. Thanks in advance!