What am I forgetting assembly time

[POPO1984]

My paint should be done in the next few weeks. I have started buying the small odds and ends neeed to assemble my truck when I get it back. So far I have bought gmcpauls weatherstripping kit, bumper kit and the complete stainless works body and bed kit. I know I need to get the j nuts for the fenders but what else am I missing.
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