Oh mate, looks wonderful process, but really trick question ahahah...
Based on my experience, 12 hours asked for PBL coating are too much. Although I always respect even more than 12 hours without moisture, for sure I do my tests and I can state that in a hot sunny day it'll cure much faster.
However, I don't think this 'faster' will be fast enough for you to work the wheels first, put the wheels back and then wash entire car. Even if you leave it curing for 1, 2 hours, I can't say it'll be enough. The less I would say would be at least 5-6 hours, but that's already much time.
Based on that, I would do the following:
- Wash wheels and wells, first, the way we generally do (with them in place),
- Wash the car,
- Iron out, clay, etc,
- Now you remove the wheels and re-wash them (will be much easier as well since you already washed them prior), prep and coat, clean the wells again, dry and put wheel back. Follow to next wheel and well, and so on.
**This is not my definitive answer, please, let's discuss a bit more to get towards the best approach.
That said, feel free to criticize my answer above, I'll need to do the same you will do so the best we achieve here, better for both of us!
Hope that helps,
Kind Regards.