Can you describe the soil in the area you are planning on doing the plot? Is it sand, loam, or clay? Fairly deep? Rocky? Let the soil pick the location of the plot, then place you stand accordingly.

The one other concern I would have is the amount of available sunlight. It looks like it gets decent direct sunlight, but generally the more light you can get to it, the better off you will be. Wouldn't take much, just remove some of those smaller trees to open it up just a little more.

I would skip any type of control measures until you are close to time to planting your plot. If you aren't going to get your plot in for another 6-12 months, then I would wait. If you spray it or plow it now, weeds will take over and you'll have to do it again when you get ready to do your plot, or keep trying to keep it clear, which I would not recommend.

If you do not have a suitable location for a food plot, or even if you do, try to figure out what the turkeys and deer are doing on the property. If they are eating something naturally occurring, you may find it more beneficial to try to manage for that particular plant species.

It is too hot and dry in my area for buckwheat, so I can't tell you much there. If you plant wheat, go for a beardless variety if possible. Everything seems to like it better, even before it heads out. When it does head out, since it doesn't have awns, both deer and turkey will continue to eat it as it matures. I've tried to grow it some here, but the abundance of wild hogs makes it unprofitable for me to try to do so.