Preferably table top mount. Due to my set up having to be with the tv in the corner I’m not sure a wall mount will work with a tv that big
There are corner mounts available... also ceiling mounts...
For your desired approach... you may need the TV in hand first, but you will need to measure from the bottom of TV to top VESA mount on the TV, then subtract that distance from the maximum top mount on the stands... what is left over will be the space you have available for you Center.
One other note: it is preferable to keep your Screen about 1' away from the baffle of the center channel in order to minimize diffraction issues. These are minor and may even be inaudible, however, if you have the ability it is considered best practice.