Yepp seen these too but too be honest they are just basically regional varients of paratilapia pollieni and bleekeri (which i reckon are the same species). You can get young pollieni cheap enough we have around 20 at work and some are coloruing up just as nice as those in the magazine at around 3" and only somthing like £8.00 each.
My friend has a 10" pollieni male and its a real glass banger and some great colouration i believe its one of the big spots., Also know that they are in incredbily agressive especially to the female so they would probably need deviding. Just my help