I'm in need of a low priced 2x3 coroplast bottom

My two bunnies just don't get along anymore so I need to seperate them. Does anyone have a 2x3 coroplat bottom for a low price. I bought my first one from sue but it is way too expensive for me ($45) to buy another. Any help would be appreciated. I also just found out that both bunnies have skin mites which is causing dandruff and skin irratation. They are going to the vet tomorrow. hope everything goes well.
Thanks