If you manage to get a working model, the LM565 itself is highly regarded for specific applications: ariat-tech.com : Features a highly linear Voltage-Controlled Oscillator (VCO)

Remember the golden rules:

: The VCO may not start oscillating automatically in the simulator; users often need to provide a "kick" (e.g., a pulsed current source) to trigger operation. Model Accuracy

Group the pins and drawing into a "Device" and save it to your user library. Alternative: CD4046