Pedal exerciser (Glenrothes KY7)

I know it’s a long shot but wonder if anyone has a pedal exerciser they no longer need. The type you use while sitting in a chair.
I had a total knee replacement almost 5 weeks ago and am struggling with the pain. I have an exercise bike but not able to use that yet.
Once I'm mobile again I will pass this on.
Thanks for considering me.
Can get it collected in Fife at a time to suit you