So I pulled new codes today.

P1590, think we all know that one.
P1300, Misfire code, catalyst. Maybe the oil leaking from the valve covers? Maybe need new catalytic converters and o2 sensors? I did recently purchase 92 octane from the less than reputable gas station on my recent trip. The SES light came on shortly after that purchase.
P0305, Misfire. Replace Plugs/Wires?
P0307, Misfire
P0171 and P0174, Looks like folks have had success with cleaning or replacing the MAF. I know it's dirty. Just haven't dug in yet.

So far, I have put seafoam and topped her off with ethanol free gas.

In the morning, I plan to clean the MAF, then order or buy local plugs and wires.

Any other suggestions?

She's running fine. I have a strong feeling the MAF set it off, but I don't know for sure yet.

I will post results when further diagnosed.

Edit: Just inspected wires for spark leakage and didn't see anything.