Nice suggestions for at least sanity testing. In combination, it would seem a decent way to get a DMM back in the ballpark. Thanks. I'll give that a shot for the time being.
I vaguely remember someone here recommending an ebay option. I think it was just for voltage and maybe was budget friendly. This $44 unit is just more than I want to spend. I will just use SawMaster's approach if I have to spend that much.