The body and neck look original, but it is hard to know about anything else. The pickguard and bridge certainly are not original--there will be post holes for the original 2-point bridge visible under the cover if it is a genuine Gibson. The bridge cover itself looks like the correct style, but it also looks like un-chromed brass and is upside down. Impossible to know from pics if pickup is original, likewise the pots. My guess is that someone bought a stripped body and revived it.
Value will depend partly on whether it is the original pickup or not--it could just be from a Chinese Epiphone. Also, if seller is not acknowledging any non-original parts, then not someone to be trusted too much.