How much can I get for my water damage 32 g 5s iPhone?

From who? It's pretty much worthless.

On the other hand, so long as you haven't opened it up, you can take it to Apple and get an out of warranty replacement.

Hi

Try it on ebay but i would pay £0.00

Cheers

Brian

Ps make an Appointment at Apple store for out of Warrenty replacement

You will need to pay part of the cost.

Cheers

Brian