The rears are a breeze, def no more than an hour. The fronts are trickier. You need to remove and repack the bearings. I think my fronts took about 2 hours for the first side and about an hour for the second.
I am a new owner so all the accumulated knowledge in the forum is new to me. I was looking for this procedure here but found a useful link for Isuzu captive rotor removal. I had never heard of this style brake system before. I hope it helps someone else.
https://youtu.be/ervit_vNHxc