bscism

I recently got a nova in advantage timber camo. Great gun and want to use it for deer this year. The only barrel I have for it is a smooth bore. What types of slugs should I shoot out of it? Should I buy a scope and scope mount? If so where can I buy one? Should I buy a rifled choke tube? If so where can I find one? I am pretty new to hunting and appreciate any suggestions. Do you know if you can buy a rifled barrel in advantage timber? Thanks