With a little planning (having already got a MiDs build, emailing myself Emps, having food stocked and no tasks/errands RL) I can do that in a day. It is a grindy shitty day. But I would guess 10-14 hours. Lot of coffee. Bad mood. I have not farmed as many 50s since the AE nerf, but all of this would be AE until Alpha is opened up. Then +4 ITF kill alls and more farming (to test incarnate exp, I think both are similar. plus needed a break from tunnels....) Definitely achievable.