Here is what I would do.
I would try to upgrade our no. 8 to top 4 using Tuck. With that pick you would go for Gumbleton, Hansen or Sellar. A guy you can build a team around. Tuck is a limited footballer, who will not be missed in the long term. Failing that I would get Riewolt.
Why not just get a topline mid, rather than the no 5 or 6 KPP? We have plenty of mids and miller et al have demonstrated the ability to pick them up low in the draft.
No. 26 I would attempt to get Thornton with. I can't believe we aren't chasing hard after this guy!!! Hopefully it is all smoke ane mirrors. Failing that Polak.
Trade one or more of Hyde, Hartigan or Krak for the right player or a second/third rounder. Pick up young mids with the picks we have left.
If Richmond does this it has balanced out it's list in one fell swoop. We now have a spine you can seriously have a tilt at a premiership with over the next couple of years. The problems with ball winning out of the centre will fix themselves as players like Polo, Raines, Meyer, Howat, Foley, Deledio and Tambling gain experience and size.