Conventionally when using a pot as a variable resistor the wiper is connected to one of the ends; I don’t think that’s exactly necessary, you could leave that end unconnected, but that’s how it’s usually done.
If you number the pins as 1 = counterclockwise limit and 3 = clockwise then usually the wiper (pin 2) connects to 3, but it depends whether the circuit makes more sense with resistance increasing or decreasing as you turn clockwise. Here, from the datasheet, “The Q Control (pin 2) is a current input summing node. Minimum resonance occurs at zero current.” so you want counterclockwise to give you minimum current, or maximum resistance. Therefore wire the wiper to potentiometer pin 1.
When used as a voltage divider usually pin 1 connects to the low voltage and pin 3 to the high. But again it depends on what makes sense in the circuit. Here you do want higher CV as you turn clockwise so pin 1 is -12 V (via a 4.7k in series) and pin 3 is +12 V.
The V2044 datasheet doesn’t say what any of the caps do but shows 560 pF on pins 4–5 and 6.8 nF for the other three. But the SSM2044 datasheet shows 820 pF and 10 nF like here. My guess is it affects the frequency range, and that a precise value is unimportant, so just a 680 pF might work fine. Otherwise use caps in parallel (not series) to add their values. 680+100 I bet would be close enough. (Or of course just buy an 820 pF cap.)