I’m not the most knowledgeable on the different wheels available and there are other people on this site that would put me to shame but I’m not sure what those wheel are, maybe buffalo wheels, but the wheels that you are using appear to have too much of a positive offset that wont work on the deuce as is and that’s why its rubbing. The ones I used are different, with a more negative offset and were another type of hutchinson. Ill post a pic of the wheels I used on
@ToddJK ’s truck.
On the topic you asked about the valve stems and lug nuts, with the flipped hubs that brings the load on the bearings in alignment and that puts the face of the wheel with the valve stem out so airing up wont be a issue. the lug nuts how you have them will be ok, but it is a lot better to grab 24 of the same lug nuts that the front uses and that will replace the two piece bud lug nuts used on the back and will simplify everything.