You can put the baffle between two chairs, and place the drivers as follows.
To mount the Voxativ use the 4 x M5 bolts/serrated nuts for every driver that were provided with the HW Kit. For Coax10 use the 8 x M6 bolts/serrated nuts for every driver.
The posts for the cables should point to ~5PM when looking at the baffle from the front.
One by one, insert the bolts and tighten all of them relatively strong.
Once both drivers are mounted, you can mount the baffles with the drivers onto the frame.