Yes I know Sierras never get stuck

In standard form there is not a suitable snatch/recovery point, all we have is the tie down located directly behind the driver, just under the rear bumper. Not recommended for snatching, dubious for a winch recovery even with the low weight of a Sierra.
You can buy the aftermarket recovery hooks just about anywhere for around $20. These have two high tensile bolts spaced about 2" apart and mount really easily to most bullbars. I have looked at mounting one on the rear of a Sierra, would require drilling into the chassis close to where the tiedown was. This places it very close to the shackle which if fully compressed would foul recovery.
What other options are there?
I am toying with the idea of replacing the rear bumper with something much more solid which can double as a towbar with recovery points. Obviously this will mount directly to the chassis rather than traditional rear bar mounts. Perhaps with Hayman Reece style towhitch. mounted higher than traditional towball as I dont want to sacrifice departure angle. Has anyone done some thing similar previously? If so, pictures would be great also any problems encountered, lessons learned.