I'll be waching this tread...I'm very interested on this model. I thinkg that converting the 2 dr to 4 dr cam be made, but now I know that is no so easy. This is one of the TV car I really want to replicate.
I be thinking in build one myself using a 2 door in a future, couse I'm a big fan of this Supernatural car. In fact I be thinking in build another 4 door from a 2 door. a 69 plymouth Satellite to resemble my father's one.