C&C cages for GPs

[cheeseycharlie]

Looking to move from Ferplast to C&C for 2 guinea pig boars. Does it matter where I buy the C&C from? Or are they all totally interchangeable and interconnectable, regardless of which supplier?
I can only really seem to find them on Amazon, and there were only two brands Kavee and CagesCubes, neither have enough consistent reviews to form an opinion! Are there other stockists I'm missing?
Thanks

I bought grids from Costco , they were a storage /shelving unit .
14" square grids and cnnectors that are round with a + fastening . Like most Costco things though when you go back they're out of stock Though I found them a struggle and used cable ties , make sure any ends are short and not pointng into the cage so there's no risk of injury .

You need a good base - the 'coroplast' is a wipeable plastic than can be cut/shaped .
I used cardboard , thick even to protect them from the base grids , I could have the sides higher to make a secure cosy sleeping area , and th sides a few inches to cintain the hay ( it didn't )