Hello All! I curently have two little 6-8 week old Guinea Pigs and I'd like to create a C&C cage for when they get bigger, I'd like them to have enough space to play and have fun but I don't want to spend too much money... I know I need either a 2x3 C&C cage or a 2x4 C&C cage , If it's possible does anyone know where to find the Coroplast and Cage walls? Also, I heard that there is a certain cage that is a choking hazard due to it's larger squares. What is that so I can make sure to avoid it.