You should easily be able to get to all the resorts. I would visit the ones you dont even want as well though because you never know what your decisions might be at 7 months sometime or even a last second you need to move your trip.
- MK -> walk to VGF -> walk to POLY -> boat to MK -> boat to CCV/BRV and back -> walk to BLT -> monorail to TTC -> monorail to Epcot (note that VGF/POLY you would be walking to the TTC to get to Epcot likely)
- Walk out of Epcot World showcase and walk around lake (BCV/BWV) -> boat to HS -> skyliner to CBR -> skyliner to RIV -> skyliner to Epcot world showcase
- AK -> bus to AKV-J -> walk to AKV-K -> bus to Disney Springs -> walk to SSR -> walk to OKW (this might not be allowed now so double check) -> boat back to OKW (if its running) otherwise Bus to Epcot or MK
The reason you want to do "loops" IMO is you can get a better idea of different modes of transportation, how far things are away, and you can take in the sights.
For Adult things? I mean most things in WDW can be done with kids. Its just really what you personally would do or not do with them tagging along. Really the only adult only things would be V+A or the new Geo 88 lounge starting in June.
Monorail or Epcot crawls?
Food they don't like so you skip?
Rides they don't like so you skip?