I am getting a bit overwhelmed now.
Shows that you are on the right way :-)
Should we take the ferry from Moskenes to Bodo and get a direct flight
to Bergen(summertime, Wideroe ). I feel that might be efficient than
flying from Lofoten!
What is efficient in that context (cost, time)? This ferry ride is not outstanding scenic at all, so isn' Bodo to me. At tough weather it is also a challenge. Neither by time nor by cost it is an advantage compared to flying LKN - OSL and start NiN to Bergen from there with flight Bergen - CPH. But independent from what I say trust your feeling. It is not only a rational thing, it is intuition. You shall feel fine with what you booked, that is very important for travel pleasure.
Wonder if just taking the cruise from Tromso and doing the Lofoten
would make more sense and more relaxed than driving?
Hurtigruten (Hr) is a very relaxed experience. If you travel "only" Tromso - Svolvaer by Hr you can just embark as pedestrian and rent the car locally (Svolvaer). If you would even fly SVJ - OSL you would save the one-way rental fee.
If you want to stop in between in Risoyhamn to explore Andoy for a day and do whale watching you will need the car from Tromso on because no rental car provider in Risoyhamn. And bus 18-874 has currently no published summer schedule to plan with. More costs but more freedom.