Thanks, Guys!
My O'Reilly was able to cross reference WIX 33032 to something they can get today, I'll post what it was once I confirm that it fits.
A little peering around with the scope shows that I've got one of the all-plastic filters now, so (I think) less of a bursting risk than the half-and-half filters, but still worth changing.
I have a supply of EFI-rated stainless screw-type hose clamps (with the protruding ears for the tension screws, not screw cuts in the band), but Jim Hamlin made me an Oetiker believer when I worked for him. If O'Reilly doesn't have them, I may wait to get the Oetikers to do the job.