Classic and Vintage Bicycles: What's it Worth? Appraisals and Inquiries - Dura Ace 7400 8-speed FULL group - What's it worth?

I've got a Dura Ace 7400 8-speed group I'm thinking of selling. It was fun piecing it together but it might be time to sell it for something a little more practical.

I have the following:

7402 Crankset, 170mm 52/39 - good condition, life left in teeth
7400 Bottom Bracket, English threaded - very good condition, no original bolts
7402 Rear Derailleur, 8 speed - very good condition, jockey wheels are nice
7410 Front Derailleur, 8 speed clamp on - very good condition
7402 Downtube Shifters, 8 speed - very good condition
7402 Cassette, 8 speed, 11-23 - good condition
7402 Brake Levers, aero - okay condition, some scratches and flaking in chrome, hoods are good
7403 Brake Calipers, dual pivot kind - very good condition, unoriginal shoes/pads
7410 Headset, sealed bearings - very good condition
7400 Seat Post, 25.8, fluted - okay condition
7400 Pedals, matching shimano cages and very nice Alfredo straps - bearings roll smooth, a little bubbling in chrome on right cage.

Sorry I don't have pictures. I tried to give a general ball-park of the condition of each part. If I were to sell this to someone or on Ebay, approximately how much do you think I could get? Would it be wiser to part it all out or sell it all together?

Thanks!

Nice group. I would maybe pay around $300 for it all, though the clamp on front derailleur and seatpost size may not fit a lot of people's needs. I'm sure you can sell them for more if you list it all separately, but if it was mine I'd rather see it all stay together. GL

Off the top of my head your looking at $410 +/-. Some pieces like the headset, pedals and seat post bring very good money while others like the FD bring very little.