BRD is really 2 dungeons in one that you can do in many variations.
The lower part is 48-54 and the upper is 55-60.
Its rare that groups do a proper lower BRD run. When they do they are usually called a quest run but even those will probably do up to 7 dwarfs bosses and then 52 is a bit low.
You say you are a paladin. As a healer you can easy do up to 7 dwarfs. But, there are many healers that wanna do BRD for preraid bis.
You can also grind. You didnt mention that. Good gold and xp. I would recommend grinding demons in Felwood. They drop ok gold, felcloth and demonic runes that you will need in raids.