My Primo EM258 Build

Long form nature recording 96+ hours.

Questions:

1. Is the wiring diagram/picture above the right to solder up an XLR plug for the EM258?

2. 24V phantom power: What Capacitor and Resistor would I use?

3. 48V Phantom Power: What Capacitor and Resistor would I use?

4. 4.7uF 25v aluminum electrolytic capacitor – can a 50v be used instead?

Bill of materials

4.7uF 25v aluminum electrolytic capacitor

100k potentiometer – for dialing in the right resistor? See here