I went with the first offer, they seemed nice on cam footage. Think they can still back out for 10 days or so. @bigred1 did they put down earnest money that you keep now? Definitely not worth the hassle but it's something.
Man that sucks. I had an old Murray that I somehow kept alive longer than it deserved. It was always something seat switch, solenoid, spindles, blade engagement pads/arms. Finally had enough of that BS.