I actually switched it over Wednesday night. It's not really that bad. I didn't get the headliner in until Thursday evening. But, I would say about 3-4 hours tops. I swapped all the rear seat bolts out to Rivnuts so I don't have to hold back up the remove the seats from the rear fenders. And, I just left the seatbelt brackets in place and removed just the belts themselves. That helps.
I am going to get an additional hoop bent up for the front section as the main roll bar on the Tithonus interferes with the cab. That way I can put the entire rear cage back on with the truck cab.
I am thinking bimini top and leave the rear seats in. I pulled them so they don't get rained on until then however.