Wade:
I appreciate your willingness to keep an open mind.
Now listen closely if you want to get some grapes in a few years.
Take that vine and put it in a pot, bucket or whatever else you got that will hold some dirt. Fill about half full of dirt, with the vine in it.
Vines like truck rides, ot in te bed of the truck..... Too much wind, put them in the back seat. Take them to fun places like Home Depot, Lowes Home improvement. Hey....... While your there, see if they have some companions for your new friend, get one or two. It's nearing the end of planting season s if they have them they are probably pretty cheap.
Once you have picked out a couple good plants, Take them home and plant the store bought ones, but keep tat potted one with you..........
Take it everywhere you go. In about 3 days, show your friend the wine room. Have it sit there and watch you mix up a batch from a kit..............
I'd be willing to bet....... that the next day, your going to have to bury your new friend............. He couldn't take the heat.......... he couldn't face judgement day.
Now take that vine back out side and give it a burial next to you new friends that wil produce for you................
That would be my suggestion for your vine.