As I replace them, I am going modular.
I build a 8' tall modular base out of 3" angle iron with lighter angle iron ladder attached.
All of my blinds are on skids that drop right into the modular base.
Most of them are 4x8 for two people but one if them is 4x4 single person blind with matching 7' tall base.
I have a set of forks that attach to the bucket on my Kubota to move the base and blind around as needed.
I can drive up to a stand, slide the forks right under the blind and lift if off and move it where I want it.
After I move the blind, I grab the base and put it in place, then level it on 16" square concrete pavers.
After the base is secure, I grab the blind and set it right on the tower.
Makes moving them easy and a one person job and an 8' lift is a chip shot with the Kubota.
I do have a favorite box blind though.
It's a fairly plush 4x8 two person blind that's insulted and carpeted with office chairs and big windows for night vision use.
It's 18' to the floor of the box blind so you are looking out windows that are 21-22 feet in the air.
You can see a long way from up there and it gets your scent cone way up there so it is less detectable by the hogs.