South Dakota 350 miles ....Dead Honda

Finally got in a decent ride today. Leaving Wall SD  I ran East to Kadoka, SD....misread my map and ended up 15 miles past my turn....back West 15 miles and headed South on Hiway 73. The Exodis of humanity leaving Sturgis and heading East was unbelievable. A solid line of vehicles as far as the eye could see,
I looped around South then West, eventually passing through Pine Ridge SD. A very depressing place.
Heading North towards Hot Springs the weather began to turn:

The Black Hills are in the back ground, shrouded by the thunderstorm. The road appeared to be heading directly into the storm. I took a few minute break and headed into the darkness.
A few miles down the road, it turned in a more Northeasterly direction which was just outside the worst of things. I hit light rain for 20 minutes or so but just missed the main storm:

 Glad I missed the wall of water. Looked like a real "gully washer".

I stopped at a Conoco Station at Hermosa SD and filled up. The bike had ran well up to that point, averaging at 43 mpg. Immediately after fueling up the bike started running ratty. I stopped in Rapid City and the engine did not want to idle. Headed down the freeway and the engine ran OK at higher RPM's but let the RPM's down, and it barely ran at all. Pulling into our RV Park, I had a hard time keeping it running for the last 100 yards. As soon as I let off the throttle it died and I rolled into my space. Rode 350 miles today.  Well at least it got me home and didn't die hundreds of miles from home.
I have not a clue as to what is going on with it. It has not run as good as it should for the past year, but nothing as bad as this. Likely a fuel delivery / carburetor issue or bad fuel (?)....don't know.
Appears that a multiple carb rebuild might be on my list for this Winter.....or sooner. I do have a good old school Honda GoldWing mechanic located in Billings. Maybe I'll get a quote from him for a carb rack rebuild. I imagine he will want way more than I am willing to spend. A complete rebuild kit from Radakk is about $150.00. The Honda will be "resting" for a while in any event.