Has anyone made a complete F-5 Freedom Fighter unit? I only seem to be able to find a download for reskins.

There is a Civ4 - Creation and Customization\ Unit Graphics \ Unit Request thread. I'd recommend that you try there, you will probably get more answers.

Has anyone made a complete F-5 Freedom Fighter unit? I only seem to be able to find a download for reskins.

It exists for sure. Perhaps Avain included it in the Varietas Delectat mod?

I'm pretty sure it is in avain's mod. If not, try mamba's mod.

I didn't find it in either

Try PMing either one of them to see where/if they have it. It might have a wierd name if its in there.