iPhone 4S won't charge not due to dead battery HELP!?

I noticed some of my chargers (3rd party, 1st party) were jumping in and out of charge. It would make that charge noise (bleep) I was like... well there's a loose connection somewhere. The 30 pin connector wouldn't even plug in to the phone all the way. So I was like, I need to clean out the lint. So I got all the lint out of the phone and now the 30 pin nests into the socket perfectly fine again!

At this point my phone died from battery draining all the way. The bad news is I plugged my phone in and it doesn't recognize the charger at all now. I tried several chargers, wall plugs, directly into the computer, etc. Nothing.

I wiped the pins off with a disinfecting wipe and it noticed it and it looked like it was charging. I had it plugged in for over 3 hours and the phone never turned on, it just had the "charging battery icon". I unplugged it and plugged it back in and now it doesn't even have the "charging battery icon".

I personally think that the 30 pin is destroyed for whatever reason.

I guess my first question is can this be fixed? Is there a replacement shop?

Can I sell it on eBay for parts and get a good value for it?

Thanks,