[PJ]

OK, not intending to answer my own post! But I since have gotten an estimate from Aluma-tec, Quite pricy -- $2670.00 to replace the vinyl with acrylic sliders, which will slide horizontally instead of vertically as they now do.

Now I'm thinking maybe I should consider this a DIY project, where I could re-use the old frames and cut the acrylic myself. Have any of you tried this, or have suggestions? Thanks for your help.