That's some nice bunch of sign, but find the does and your buck will come to you when the time is right. If the does are feeding there as well, find the hot trails to and from the field and find out where they're bedding. If the rut is heating up, you can bet he'll start cruising the bedding sniffing around for hot does.
I have a similar situation here- see a monster about every evening I'm out. Time to figure out where his does are and find a spot to set up between where they feed and where they bed.