I also recently got a wrangler and put a new to me hard top on for the 1st time. it took me about 30 minutes to pull the soft top and install the hard top. I wasn't smart enough to google how to do it 1st so I was winging it. As far as using your soft top doors, mine don't have the right shape to fit my hard top so I couldn't tell you.
'94 YJ, 2.5L, manual, 235/75/15, 164,000+ miles