going from hardtop to soft top is way more of a PITA then the other way around.
there are plenty of step by step resources out there for leanring how - just set aside some time and get a heat gun with adjustable heat or a hari dryer and some cream from your knuckles. The newer the top, the harder it is. Id get someone to help you too because it can much easier. I would say 4-6 hours for your first time around doing it.
Great sounds like it will be fun....I should have help and figure I will lay it out in the sun to help loosen it up....my old tonneau for my truck resonded well to that. But never done a jeep top so here goes nothing, oh and top and jeep are brand new. :-(