Yeah they seem to be slowly disappearing and the good ones get snapped up so quickly as well, I've been looking for one too. I think a good option is to try small local car centres that don't advertise on those sites mate they usually have hidden gems like 1.3 Micra's tucked away, either that or local papers.
And sorry to ask but I thought you just had a 1.3 Engine built why are you after another 1.3 Micra? Surely you could buy a 1.0?