Since town is so far away, and an exchange would be difficult for you, I would physically measure the dimensions of the tank at home with a tape measure and make sure the screen lid you buy in the store is definitely at least that big. What do you do for your toad's water? If you can use spring water, that works, otherwise you might want to get some dechlorinating drops while you are in town too. No idea on the pacman stuff, but someone here should know.