Getting pet rat which one should I get and how 2 prepare 4 new pet rat?

[Rylie]

I am gonna get a rat YAY!!!!!!!!!!!!! and I want a dumbo one but i wanna know which is friendliest and can I only get one? (I'd play with it everyday except monday) because if not the deal is OFF and that would suck.... and the last thing is what do you do to get the cage ready? what kind of cage what to put in it, and stuff.


THANK YOU!
Rylie