Number one is you see them during deer season so they may not be their in spring as turkeys move between fall and spring feeding areas, depending on when your fall season is it may be better to hunt them in the fall. If they are there in the spring I'd use a hen and a Jake decoy, you don't need to spend a fortune just get the cheapest ones you find if you need to they will work as well as the expensive ones. Set the hen on the ground in a breeding position with the Jake behind her or close by. Get as close to the roost as poss.
You don't have to sound like an expert turkey caller but you need to know all the calls to be really good, in most cases all you need is the yelp and cut but being close to the roost in the am you will need more calls. As fare as buying calls every hunter has their favorite type, I suggest a glass friction and some mouth calls to start.