Jeezus NGK, I've had more than my fair share of injuries but 40 hours of surgery has me pegged, only by about 10 hours.
I know how you felt, I've been to see my Surgeon today and without elaborating I'm not real happy with his prognosis, when I walked out of the surgery I felt like selling everything, getting a divorce and moving to Russia.
The Astro really is a DT Icon and I reckon you'd be mad to unload it, unless you really have to.
Happy sliding, Steve