Desert Valley Auto Parts in Casa Grande, AZ, was selling outside door handles for $25.00 each within the past couple of months. They almost know me on a first name basis by now, as I have been purchasing, exchanging and returning GM door handles for my Olds for well over a year by now.
I will probably be going past there on my way to Tucson on Feb. 22, so let me know if you want me to look around. Keep in mind that they are not "new", so don't expect perfection. On a side note, my rear door handle did not end up matching anything that GM offered in the late '50's, so I finally ended up getting my original one replated. I don't suspect you would have the same problem, but you may want to match one of the right side handles up with the rear door one to make sure they are identical.