Find out the reasons the opposition does not want to allow Sunday hunting. Then reply with a ditinct fact based reason that the reason is not valid. You are going to have to address politicians, religious groups, other outdoor groups, equestrian groups and even animal rights groups. You must have reasonable and calm responses that can be repeated by every person who supports your issue. You will need to write comments in every paper that has an article on the subject. You also need an organization that will coordinate all this and also be willing to stand up in General Assembly sessions where votes are being takem. It will take huge amounts of work and some money to get it passed.