If it's just for a few days it should be fine, as long as it is just plain unscented loo roll/tissue/soft paper towel. The toilet corner will definitely need to be wiped and changed daily as it will soak through and smell really fast.
Lots of people mention on here that Fitch bedding is much more economical than Carefresh and is less dusty also, so good for hams who have allergies. The only thing is it comes in a 10kg bag so it's a bit bulky but people seem to store it just fine. It will definitely last you much longer if you find the Carefresh to be too pricey