I am getting a new Baby rabbit...two or one?! Help!?

My dad said he will think about it, because I want two for company for each other. But I think the only thing putting him down is that it will be double the money, but I don't think it would be that bad because dried food is only 30% of their diet and gr is free (obviously) and hay isn't all that expensive. If I got two they would share a double hutch (two storey) and hopefully would be brother and sister (we would get them neutered of course!) but I think the vet bills is a big thing as well:/ Can I have any advice please on which would be best, it would really help if I could convince my dad! P.s I don't want people telling me to get rescue rabbits. Ad also if it helps I have had a rabbit before, but she sadly died not long ago, but I think my dad trusts me to have another one or two because I did such a good job of looking after the other one. Thanks!