Both would probably fit in the wire crate Argos carry (if they are reliably happy to be together in such close confines) -- I can check the size for you. Problem with a babygate is, if you have kids, you don't have much privacy then!
It may be easier to train them to the kitchen where they can have a bed or crate them in the kitchen. Easier to ignore the barking/whining that may happen initially if they are in the kitchen. Cover the crate totally with a dark sheet though and that should help -- then they don't have any visual stimulation.
Mine all are fine in crates when they are boarded. They accept that fine as an alternative. Every now and then I consider crating them all at night so I have room to stretch out.