Poorboys is pretty awful. Don't know why it's got such a good reputation. Probably because of #scenekids.
As Dan says, you want a ceramic coating. I have Carpro CQUK on my wheels, but it's much of a muchness.
30ml will be more than enough, I used about 10ml for 2 coats on 4 wheels including the barrels.
remove the wheels from the car, clean them thoroughly, and detar and remove iron as you said.
clay the barrels and faces as well
then you need to use an oil remover like carpro eraser or gtech panel wipe.
then once they're fully dry and prepped then you can apply your sealant.
i think organic waxes/sealants are a complete waste of time.
do a glass coating or nothing at all.