On a small acreage tract, the best thing you can do by far to attract bucks is to attract and keep does on the property, and then wait until the rut. Other than opening week of bow season I have never had much luck seeing large bucks outside of the rut. They become nocturnal and rarely move. You are highly unlikely to see them outside of the rut even if you can convince them to live on your place. As CNC said, I don't think there is much you can do to convince large bucks to live on your property as a core area. They tend to pick their spot based on spacing from other bucks and then stick with it until the rut year after year. All you can do is let the young ones grow that do decide to choose your property. The one sure bet you can do to have a chance at killing a big one is have a lot of does on your place during the rut. Those does will get bred and it happens day and night.