Cant help with a complete list but with your pixel count you can use a PI with Pixel hat to drive two strings for a total of over 2000 pixels. This meets your pixel count needs. Using 12V pixels you will need to power inject at least every 100 pixels (more often is ok). You need to plan the path of data through your pixels. You will need at least 700 watts from your PSUs. I would get three 360W PSUs and keep the load distributed. Some people like a huge central supply. If you go with that it should be greater than 900W.
Once you plan your data path and create your power plan, you can figure out how much wire and how many connectors you will need.
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