I hunt in Alabama. I use a suppressor for squirrels but not for deer. I guarantee that 99% of hunters around where I hunt have no idea that suppressors are legal, nor do they care. Most of them are deer hunters. They know ( but don't necessarily follow) the laws concerning bag limits, supplemental feeding, seasons, etc but do not do an in depth reading of the game laws every year.
I don't think you can do modifications to any gun and really increase it's value to the general gun buying population. There will be specific people that want what you have but probably 10x that number will not want it. After market threading may be fine in a few years as more people get into suppressors. If it becomes all the rage then we will see Savage and Ruger threading barrels on their low end guns.