Storm Door Inside Handle

I think you should consider our 40-150 inside handle. It should line up to the hole spacing of your old handle (double check just in case). You will need to reuse your existing spindle. It will be a little tricky removing it, but it's not impossible. You will also need to remove the inside spacer in the 40-150 to accept your spindle. Look it over and see what you think.

I have removed these spindles in the past and I remember it being a little tricky. You said you removed the screw, but I believe there is also a small drive pin somewhat hidden under the nose of the latch. You will practically have to take apart the complete handle to access that pin, I'm afraid.