I did a search but I didnt find anything on this specific product, has anyone used it.
I just found it while searching google, Ultra One Safest Rust Removal. Someone on the forums suggested OSPHO, but OSPHO changes the chemical state of the rust while this stuff looks like it dissolves it, and it says it safe on everything and it won some award on popular mechanic.

I have 3rd gen and blew my motor nearly 2 years ago, I let it sit behind my house collecting dust and rust and a lot of other things and I want to get this thing pretty again. Its in pretty terrible shape, but I'm gonna try to build back from the ground up.

Anyway, here is the link, http://www.safestrustremover.com/

the pictures and testimonials are pretty convincing. Any experience?