Musicians Roadhouse

Hi guys. I want to buy a 2X10 Marshall pa 2043. I can get it without speakers. Someone know if fits 12" speakers? I want to install one 10" the other 12" if is posible. Can you recommend me a great combination between 10" and 12" speakers? In 10" I have a celestion vintage on a marshall 5005 that can use in my heads. I like it.
I appreciate your help