You have two options. You can install the Amazon Appstore (free, doesn't require root) and see if it has the full version of CC. If so, you're in luck. If not, you'll need Google Play Store installed (because CC will phone home every now and then to check for a valid license). That will require root.
Fortunately, that isn't hard.
Here you'll find instructions for how to root your device and install Play Store using the T6X Toolkit. I believe that your inkBook is based on the Boyue T62/T63, so this method should work for you. You could check out the thread or post a question there to make sure before trying. If this doesn't work, there are several other methods our there to root your device and then to manually install Play Store.