请问这套沙发价位是多少翻译成英文

请问这套沙发价位是多少翻译成英文

1.How much is this set of couch (sofa)?
2.What's the price of this set of couch (sofa)?
3.How much should I pay for this set of couch (sofa)?

how much of this sofa?
what is the cost of this sofa?

How much money is this sofa ？