I would probably take an approach something like this:
- add "width" to your blank, then pick it up like in my example and face/profile in that direction
- flip the part 180� and pick up in contoured/soft jaws with the shape required, and face the remaining material off the other "side"
- grab part "upright" in stepped jaws (now finished completely on the outside), and machine the pocket
I have not addressed your full corner rounding you show in your model, but don't know what you have for tools.
Link to file -->
https://www.dropbox.com/s/pc6lw2m9mf...20PM1.f3d?dl=0
PM