URGENT Need Answers Quick Please Another SR20DET HG swap

[240KAR]

Okay so I'm going to change my head gasket this weekend on my SR20DET, and I have searched a lot so basically what I'm asking for is just someone to look over my list and make sure I'm not missing anything. So far I'm thinking I need the following:

Intake manifold gasketExhaust manifold gasketHead Gasketvalve cover gasketRTV Copper SprayValve Seals (just incase)ARP Head studsTiming chain tensioner gasket

Is that all i need, ask questions, im here to learn and very eager..

A few more Q's...Is there anything that I should really make sure I do or be aware of.. Thank you for your help..