I appreciate the help. Since my original post I’ve watched probably 50 videos on benches and read about half of Christopher Schwarz’s work bech book. So ive changed my mind a bit, im not going to put an apron on it. I want the legs flush with the top, so i can clamp longer pieces to the edge of the top.
My current bench is 37 1/2 inches tall which comes to the middle of my hand. Im 6’3″ and i have back problems so i dont want to stoop alot. I only have a tail vice on my current bench its a single screw so it always racks unless i use a scrap piece of wood as a spacer. Last night i drilled a line of dog holes with a hole every 3 inches so that should help some for the time being.
Im thinking a leg vice with a sliding deadman for the face, to work the edges of boards. and a twin screw vice as a tail vice, which i can use with dogs to secure pieces flat to the top, and if the screws are wide enough i can use it for dovetails, and tennons.