I had a similar bike a while ago, late 50s geared Dawes, good condition and 100% original, all branded parts (GB brakes and stem, Cyclo-Benelux derailleur, Bayliss-Wiley hubs, Williams crankset, Wanderlust pedals, Brooks saddle and toestraps etc) and loads of original accessories (pump, lights, bidon, flint catchers, Dunlop puncture kit) - only went for 200 on ebay.
You need to evaluate the value of each component and, knowing that whole bikes are rarely worth more than the sum of their parts, price the bike accordingly.
I had a similar bike a while ago, late 50s geared Dawes, good condition and 100% original, all branded parts (GB brakes and stem, Cyclo-Benelux derailleur, Bayliss-Wiley hubs, Williams crankset, Wanderlust pedals, Brooks saddle and toestraps etc) and loads of original accessories (pump, lights, bidon, flint catchers, Dunlop puncture kit) - only went for 200 on ebay.
You need to evaluate the value of each component and, knowing that whole bikes are rarely worth more than the sum of their parts, price the bike accordingly.