Thanks everyone for all your comments and concerns about the lids, i would've updated this thread earlier however it has been quite a busy day with a lot of room arranging/organizing. For the lid situation i did decide to tape the gap up on the outside:
This'll just be till tomorrow where i'll probably create a hinge effect with cable ties if i can. Shadow-Bear does have quite a calm personality so the likelihood of her trying to escape is quite low.
Moving on this is the cage all set up:
Top view:
Side view:
When i put Shadow-Bear in she immediately explored and seemed very happy and confident in the cage zooming from one end to the other.
Here she is: