a marathon is won one step at the time, but if you only walk, the party will have left when you reach the supposed finish line.
This reminds me of a gentleman on the vette site - he offered his MY2000 for sale for more than two years - could not understand why people just did not came to his house to pick it up...
You must advertise - your car is not that special, and if you appear "not serious" you will scare off potential buyers and only attract "tyre kickers" looking for a free ride... (to put it black/white)
Value is - as you state - market value... I gave 39' for #602 back in January.. I would expect you could ask 42 and close for 39-40.
Good luck.
Henrik