depends on how indepth you really want to go with the build... but the normal parts list is:
motor
basket
coil
spider
cone
dustcap
whatever type of leads you decide to use (for direct leads, just solder and zip ties, terminal leads require terminal posts)
ca glue (can be interchanged, but CA glue works very well, in my experience)
various tools required (for a complete build, you will need some tools)
thats all i can think of off the top of my head (i'm sure i'm leaving something out, lol) ... but just do as much research as possible, cuz a "parts list" for a sub build has endless possibilities really, depending on your budget and goals