oh gosh...get the hard hats ready .....
I know i waited to see what hit the fan before responding.
Zarzar you are an incredibly brave generous person to take on all these pigs and you seem to have your head screwed on the right way as for moving forward.
Good idea advertise the piglets everywhere you can, any idea whats in their Dolly mixture breeding will give you an idea of how big they might grow, if its predominantly KK they won't get too big and will make good pork & sausages.
The male pig will settle down soon especially if you can move the girls away from him, watch for him bullying the other little guy at meal times.
You have 2 girls who are very possibly pregnant, do you have a ewe scanner for detecting pregnancy, they're quite good for checking if pigs are too, have a listen if you can, then you'll know for sure what you're dealing with then its a case of getting prepared for farrowing.
Hth and well done for coming to these poor creatures rescue. I
HATE 
the micro trade. It leaves so many broken hearts and unwanted animals.
All the best to you and piggies.
mandy