Check out Sorido Bay / Kri Eco Resort (up North) or Misool Eco Resort (down South) if you are trying to do some land based diving in RA. I have been to Sorido - phenomenal (as in, go!) and have heard great things about the Misool resort. The liveaboard should be able to drop you off / pick you up from either place if the schedule allows but may have to be done out of Sorong. I second the above...Manado makes a good stopover...get some dives in at Lembeh. From my experience, Bunaken, while nice...is kind of pointless if you are doing RA - just spend your Manado (or N Sulawesi) time in Lembeh. Reason being is that RA has everything Bunaken will have and it's 1000x better (not a knock on Bunaken - it was great and relaxing) in terms of fish, coral, currents, scenery, etc. If you were not headed to RA after I would say, by all means, dive Bunaken...it works great with Lembeh and is quality diving with nice walls and coral, non-existent currents (for the most part) and great viz. Maybe others' opinions are different...