Is it ok to have two silkie roosters and one buff orpington rooster in the same pen???

[chickensman98]

i have 8 leghorn hens, 2 silkie hens and one silkie rooster, 1 rode island red hen and am going to get 10 buff orpington hens and i want one buff orpington rooster so i can get baby chicks from the buff orpingtons but i am afraid my roosters will fight to where one gets injured badly. so is what should i do if i get the rooster and will they fight to where one will get injured badly?? i will take any advice i can get because i am new to having roosters Thanks.