seeking vintage audio info


hey everyone, 
looking for some advice/info. I recently inherited a vintage stereo system, and I have no idea what it is worth. it is something I prob wont use, so im thinking of selling it, and I am hoping you guys can help me put a value on it, and send me to the best place to try and sell something like this. 
its a DUAL stereo system. I have a amp(cv-40) a tuner (ct-15) a turntable (1209) a real to real tape  (tg-28) and 2 speakers. I havnt been able to test the real to real, but it looks in great shape. the amp tuner and speakers work great, and the turntable powers on and turns, but I cant get it to stop turning for some reason. otherwise, everything is in great condition and it comes from the original owner who bought it new in Europe years ago.... 
any thoughts? appreciate any advice. thanks
hordy240
Post removed 
STOP!  If you like the system and it plays the music you like, keep it and enjoy it.  If the TT issue bothers you, it can probably be repaired easily.  DUAL TT were not complicated products.

As for the others on here:

IF YOU DON'T OWN AND DRIVE EITHER A BUGATTI VEYRON OR A BENTLEY CONVERTIBLE LIKE I DO, STAY THE HECK OFF MY ROADS!  WHO THE HECK DO YOU THINK YOU ARE, DRIVING A CRAPPY CAR ON MY HIGHWAY?
its not so much that I like or dislike the system, its that I don't have a need or a use for it. I am trying to clear some room for my other system, and also get some cash to fund my other system. I just don't know enough about it to know weather to ask 100 bucks or 1000.... I know it was expensive new, but that never means anything!