can a bantam and large rooster get along?

[SammyRouen]

Okay so I have this cocky little orpington bantam rooster who is a very good husband to his 5 girls but I wanted a rooster for breeding I bought 10 chicks one of which is a buff orpington (large) cockerel. I'm not sure if they will get along.
-banty: 5 months
-large: 5 weeks
-both are buff orpingtons

By the time the large cockerel is mature the banty will be roughly a year old.

-banty grew up with NHR cockerels (NHR ended up as dinner), red sex-link, a leghorns
-large Orp is growing up with other Orps (2 females) and two female easter eggers (still living in their brooder in the house)
-I also have a group of five 6 week old barred rock pullets, black australorps pullets, and a buff orpington pullet (living in a dog crate in the coop) to be introduced to the rest of the flock in a few weeks.
- altogether that's 2 roosters, 14 hens or 7 to 1

Also any advise on integrating chicks with a baby cockerel (not till their 6 to 8 weeks old) to a flock already with a cockerel? will the rooster help with the chicks becoming part of the flock (stop fights with the hens, and so on) or will he be aggressive to the chicks. I had a successful intro with the leghorn hens but that was when my roo and hens were only 2 months old. Now they're mature and I'm not sure.

All advise and help is appreciated! Thanks!

 

[Den in Penn]

A juvenile introduced and raised with a mature rooster has a better chance to fit in. but it is not a sure thing. I introduce cockerels at or under twelve weeks the same as I do pullets. As they mature there will be some strife as they find their place in the rooster's pecking order. Be aware that some, just like people, will never get along well.