I have knobs , But its the clip that holds them on that are scarce for me. You may be able to find the clips. If you do I got a knob. The knobs with the clips I am keeping . There are 3 different knobs like that
Looking at the three knobs you have showing the different size shaft holes. I would say the one I need is on the far left with the smallest hole. How much do you want for the knob?