Animal Welfare Professionals

Does anyone know of a large outdoor crate model (I can purchase online) that can be used to rehome an outdoor cat for 7-10 days - that allows you to temporarily isolate the cat from the litterbox and food so that you can clean/refresh without letting the cat out?  I have searched high and low and do not see anything that fits the bill.  

Tru Catch and Tomahawk have feral cat recovery cages where you use a fork to separate the cat from the food/litter box so you can them..  In Massachusetts we have some smaller cages called Hospital Baskets that are used, but they are mass produced.  Let me know if you want me to get more specific.