This deep shouldnt we four bet for value.
I'd really not want to 4bet fold aq or ak suited, I think aq off suit is a decent hand to 4b fold here though and would be 4betting pretty thin for value. Perhaps just having a calling range could be interesting too, ifmhes3betting 86s then he's either 5betting us and making us fold aqs (I'm not that hood Sam) or he's folding which would be a huge shame giving the potential reverse implied odds he has vs us.
It's also,important to have these strong hands in our calling range too otherwise he just goes bananas when we initially peel and suited aces are nice hands to have in our range here.