The Plymouth Factory Service Manual is the first reference for this. There is one for each year, but the 1967 manual unfortunately does not include Barracuda — there is a separate 1967 Barracuda Supplement book. The basic information on order of assembly is provided, with exploded views. The Parts Book for each year also has diagrams and gives part numbers for every piece, but this is less useful than you might think since the part numbers are not printed on the stainless bits anywhere. I don't think any reference gives dimensions (but I don't know why you would need these). You can buy reproduction paper manuals from Faxon, and you can find them as PDF files on CD-ROM or just floating around the internet.