I’m with you Norm, time is the critical commodity.

I looked at the mowers, pulled the plugs and turned the cutter disks. When all didn’t seem right I politely gave the sellers my thoughts and made offers that assumed the mowers were parts donors. I’ve ended up with two of the three.
There simply wasn’t time for more mucking about. When it’s cooled off a bit in a few weeks I’ll strip them and see whether I was right about the condition or not.