Question about Cup Holder

This is for an '89 H-body (Lancer Shelby)

I'm hoping to get some clarification on Lancer cup holders. Below are the part numbers I see for the cup holder:


Holder, Primary Cup - 4311465

Holder, Secondary - 4311464

Guide, S. Cup Holder - 4467054

Housing, Cup Holder - 4397894


I always thought of the cup holder as having two parts - the main body that screws into the backing plate, and the sliding piece that exposes the second holder.

I'm hoping to replace my cup holder so I need to know which parts are really necessary. Is anyone able to help break down the above part numbers for me? Thanks!