240z#404

Hi all, First some background info... I have build number 404. It looks the same as #4 which was on a lot of the magazines back in the day. It's not restored but it's in good condition and has some spares (flange box, rubbers etc). Hasn't been started in 15 years but is all on one piece. I think it was one-owner when i bought it. Numbers are not matching unfortunately but its all original apart from that. I haven't taken any photos yet but will do in the next week. My query is in relation to where to advertise it for both online and print? From doing some research online i's not all that clear to me how much it is worth and how desirable the early ones are. Any help and advise will be greatly appreciated. Cheers !