I have a lionhead and she is pretty small with a gorgeous mane .
She's not the friendliest. She's very scared of everything despite handling on a regular basis. Although my cross breed bunny hes a but bigger, who is living indoors now is very friendly. He is handled a lot due to being medicated twice a day.
There is no guarentee on nature or size if u adopt when they are babies.
I would go to a rescue and have a talk over about re-homing a bunny.