Take a look at the husbandry page, especially the sticky posts on top including the BP Caresheet and the glass tank setup.
I would take the vines down until you can get the heat adjusted. If your snake has proper heat with a warm and cool hide, he probably won't use the vine very much. He's most likely using it now to get closer to the heat source. Ball Pythons will climb on their own, but they feel most comfortable on the ground in a nice warm hide. BTW, I'm not sure why you can't get the temps over 80 with three heat sources. Is he in a very cold room?
The wheezing may or may not be an RI. It could just be a stuck shed, but I would definitely keep a close eye on him and get him to a vet if it persists or if you notice fluid, bubbles or excessive yawning.
If you can post a pic of your setup I'm sure you will get many more responses and suggestions.