Keith, SJF, MLD, all, thanks so much for the helpful pointers! That
small car jack idea sounds like a winner!
I also tapped a neighbor who's a plubmer who assured me they were
quite easy. He liked the InSink Erator Atlas V, for what it's worth.
I think it's an insinkerator that's in there now, but the lower line
model it seems. He also said to avoid GE and some other brand--he'd
had bad experiences with them.
He also had some good stories about clients who were idiots and
complained, for example, that entire loaves of french bread wouldn't
go down easily in their disposals. LOL..