Junk certificate vs salvage title???

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I had a bad day at the DMV. I rescued my 1970 C20 from a junkyard. The owner of the yard signed over the State of Illinois junk certificate to me. According to the DMVs website I need to have the certificate put in my name and then take the truck to the safety lane for inspection, if passes I can get a rebuilt title.

My truck is 100% working and mechanically perfect. I am ready for the inspection. Today I went to the DMV to transfer the certificate in my name. The people at the DMV told me there is nothing you can do with a junk certificate. Once it is junked, it is junked forever. I told them they are wrong. They went to make a call to someone. They came back and said if I had a salvage title, then I could get it rebuilt and apply for a rebuilt title. Nothing can be done with a junk title.

Now what am I supposed to do with my truck?