I did it! Apple stores no longer sell the SE, but ConsumerCellular has a supply of new ones that they will sell for $160 if you sign up for service. It arrived yesterday in its neat little box, but when I opened up all the packaging, there was absolutely no written material to tell me how to operate the damn thing. After fiddling with it for 45 minutes without even discovering how to turn it on and off, I gave up and called Apple Help, where a bemused gentleman with a heavy accent explained the controls and guided me through the basic set-up. At least I can now use it as a phone, but it will take me awhile to learn how to do anything else. Time to buy a copy of iPhone for Dummies.
It does have 32Gb, but the keyboard is so tiny that even with care my index finger seems to hit the wrong buttons and have to keep correcting my mistakes.