Thanks for the help everyone - turns out the worry isn't necessary. Our breeder just notified us that she thinks that there is another family more suited to the pup that we had chosen from the litter, so I'll have plenty of time to wait for the original crate to arrive, and not have to resort to anything weird/wonderful in the meantime.
I know that ideally, I would have had the crate prepared beforehand, but sometimes you get ahead of yourself
Yep, regardless of price, I always keep my eye out for the '30 day Warranty'. The crate doesn't come partitioned, I was just going to tie a metal grill (clean, of course) between the bars myself.