There are companies, as mentioned in the forum that will fix your usb port.
I personally think that FP should be a bit more accommodating regarding the usb port and work with a company that can replace usb ports.
Its bad quality and placement is a design flaw (mentioned in many reports) and I’m not even sure if it was fixed in the newer mainboards. But as you said the FP1 is not really worth an expansive repair. It was the phone to get the FP company started so they would be able to build their dream FP2.