Yes, you could use those two and just not run them anywhere near full potential, as I would have thought that will be way more than enough power for that size of model.
In fact, just one of those motors would probably be enough on it's own, let alone two of them.
I would say that a pair of 35mm outrunners of around 1000kv would be somewhere near right for that and can be picked up cheaply enough (Around £18-28 each).
Will