I *think* I got lucky and dodged a bullet. I connected the -8 AN female nut on the hard line to a -8 male to -8 male coupler, then made a new female to female hose to the filter, which connects directly to the fitting on the gas tank. The coupler screwed right in, so I'm guessing the threads on the nut weren't damaged. This is how it looks now.
Untitled by
Lippy111, on Flickr