I'd love to be able to try something like headless Chrome, but I don't think I'll be able to persuade my client to take that route. The low-tech alternative would be to have someone manually download the file every couple of days, and then upload it to the local server (which I manage). Thanks for your reply, and your original post -- it's always good to read about success stories.
Alex / talexb / Toronto
Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.