I can't help with the strawberries as I have never had much luck with them.
Now the garden I can help with. Easiest raised bed is w/ treated lumber. Using 2 - 2X6's or using single 2X12 is sufficient to raise it up and give you working room. Need to clear the area - don't want the grass working back in and if I remember you have bermuda (nasty grass)- then level it out. We can sink in some 4X4 posts on the corner for sure and some along the outside middle depending on how big you go with the lay out. A cap on the top is nice and adds to the aesthetics of it.
Gardenville is a great place to research ideas and get hardcopy info. Melvin Beck is the pioneer of natural gardening in this area and known nationwide.
I have all the tools you need and might even be available to supervise you doing the work and no cost.
John
"Critics are men who watch a battle from a high place and then come down and shoot the survivors." Ernest Hemingway