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Hope what I posted helped. You are on the right track. The link you gave did not open so I couldn’t see the circuit, but I know of multiple feedback circuits. It will probably work for you, just be aware that they can be unstable. There is a thing called S Q of K which measures the stability of Q for filters as the gain changes. When transistors were used as the amplifier, the gain would change due to current and temperature effects and this was a concern. The multifeedback filters did not perform well according to this measure. With op amps it is not as much of a concern since the gain is determined by resistors and is very stable.
This filter will have a fixed gain so use the second op amp to set the overall gain.
I would like to hear how this project works.