Is it worth trying to replace the DC board after water damage?

I've got a MBP that's suffered some water damage. I tried to clean the board off but in the process, may have damaged the board beyond repair. One of the screws became stripped due to being stuck from corrosion. I scratched the board and there's a noticeable copper mark. I can't tell if I accidentally scrapped a component off or not.

When I tried to power it on after, one of the two components literally caught on fire for a brief second as soon as I plugged the MagSafe in.

I'm wondering if it's worth trying to just replace the DC board or not. When I plug the MagSafe in now, I get nothing. If I jiggle the connection, every once and awhile it will turn amber.

Also, when I plug it in, the battery indicator on the side lights up and works when I press the button. Since that's at least getting power, I'm wondering if all might not be lost.

http://imgur.com/4GVhnpv here's a picture of the damage I'm talking about