67 barracuda frame rail trouble

I have a 67 Barracuda notchback and when I bought it one of the front frame rails on the driver side was completely rotted in half and all I've been able to find is caps for the frame rails and I'm just wondering if anybody knows of any place that can fix the frame rail to where it's safe enough to drive and what would be a price range on getting it fixed I'm just a young guy who bought my dream car cuz the price was right and I couldn't pass it up any help at all would be appreciated thank you