The kit, by Kotobukiya, is a good size for 28mm, though I'd like to kitbash a rear drop ramp, and redo the hatches to something slightly bigger. For about 1000 yen it's a pretty nice vehicle, that assembles very quickly, and features swappable command vehicle and ADA roofs.
In command post carrier mode she measures:
Length: 118.4mm
Width: 58.8mm
Height: 54.5mm (roof) / 58.9mm (including gun)
The air defense missile carrier version measures:
Length: 118.4mm
Width: 58.8mm
Height: 71.7mm (top of radome)
Kotobukiya also makes tracked vehicle with armored fighting vehicle (AFV) and engineer recovery vehicle variants... I will be needing several of each.