You might find a local glass company that can make a sealed pane unit like that for you and include the faux-divided light grid. They might even be able to include the one from your original window.
By the time they're done building the window unit, disassembling the stationary door, installing the glass, replacing the trim and any trim that may have broken, repainting, etc, you may find that you're pretty close to the $1500 to get a unit from Andersen and that it probably won't come with the same warranty your original unit had or that a replacement would come with. It probably wouldn't be built to quite the same standard you're expecting, either.
Speaking of warranty, you may want to contact Andersen about it. Our windows (not Andersen) come with a lifetime warranty that includes damage to the glass (from any source, so they claim). If that were to have happened to me, in theory, all I have to do is call the manufacturer and they'll build me a replacement sash and send it out with a tech to install it. Andersen may have something similar.
No, you can't have the name of my window mfgr. They did such a terrible job with the original install, that I'm not certain I'd actually call them for a warranty issue, but that's a totally different question.