winding P-core or air core inductors using PTFE silver coated copper teflon wire for crossovers

I am looking at winding my own inductors. I am trying to figure out how to do it without too much headache. I have access to 3d printer that can print a variety materials. I want to make fairly large 2.0mH 15A coils. Any tips? I can get fairly long 16AWG PTFE insulated silver coated copper wire scraps from local electricians I work with.

Is there any procedures available without having to redesign the wheel? I have a mini lathe. I am told to go with P-core if I can find a bobbin big enough.

I'll never need to drive more than 200W into the load. These are for PA speakers which I use at parties and outdoor electronic drum kits and synths.

Ultimately, i'd like to make something like the photo attached but better.

Thanks!
 

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