Need little help 340/4sps 70' Dart Swinger

Hard to say from a few pics, there's obviously quite a bit of non original parts on it, and the "value" is tied to how correct it is, and how well done it is.
agreed, thats why I need little help. like anyone else, I don't want to ''overpay'', but so far, its seem pretty legit. Wait more details from the seller.