Still waiting for my Kona - only 2 mths and 25 days to go

Wondering if someone could give me the specific measurements for the cargo area and provide any solutions to keeping a dog in the back. We have typically used a cargo barrier (which is not available for the Kona electric) and I also want to protect the back, particularly as first time with leather.
With respect to protecting the car, looking at something like a boot liners (e.g. https://www.amazon.com.au/PETCUTE-Boot- ... es&sr=1-89). What I need is the actual measurements for the boot (Height to roof in boot at back of rear seats, height to roof in boot at tailgate, and length of boot from back of seats to tailgate) so that I can pre order the boot liner.
Also, has anyone come up with a solution to the cargo barrier for keeping a dog in the back cargo area?
thanks in advance for any advice.