The Kings now have 7 players signed (Lyles, Holmes, Metu, Barnes, Sabonis, Harkless and Murray) who are around 6'9 with a sub-7foot wingspan (with the exceptions being Mo Harkless whos got a 7'2 wingspan and Trey Lyles with a 7'1 ws)
(sidenote - it's going to be quite obvious if Keegan Murray has in fact grown some from his 6'8, 6'11 wingspan because of the above)
and the big trade target people keep talking about John Collins from the Hawks would also fit in that group..
So the Kings plan might just be a "screw it, lets be horrible at protecting the rim", which seems to be the case (and yet some will find a way to point the finger at De'Aaron for the lack of defense)
but yeah its kind of hard to believe that a spot for Portis isnt already filled by one of them and I'd hope if they do go after a PF/C it's one with a specialty in blocking shots at the rim, cuz as it stands rn it's going to be a feast for opponents near the rim, as it was last season (4th worst in the NBA letting up 51.3ppg in the paint)