Thanks, I can't tell that the '93 has one, but I pretty well figured out that there is no current leak, the battery is good, and the problem was likely dirty battery connections, which I've cleaned. I'll let her sit a few days and see if the battery has lost any juice, but all cells tested good, so I'm hoping it's problem solved. I was so concerned about problems caused by the cleaning of the engine with chemicals and water, I assumed the starting problem was a direct result.
Thanks again for the input!