Help with Power Port Replacement?

I have a mid-2013 Macbook Air (A1465) that needs a replacement power port. Apple is evil and is saying that the damage is accidental and not covered under my AppleCare (!) and will cost $850 to repair. Ifixit.com doesn't seem to address this, and my system is virtually unusable at this time (I can sometimes get it to charge but it's becoming less and less possible over time). I've tried everything I can find to do online. I have a good local non-authorized service guy who can help if I get the part, but I can't seem to find it anywhere. Help? Thanks!