A car that is at the 1% upper edge of the bell curve for miles & condition inherently has a lot of variability in the selling price as not enough examples exist in that level of condition to make a meaningful number of sales to form a "market" price. On a given day a motivated collector will pay a very high price on another day not so much. I would think time or even an auction sale with a high reserve works to the sellers advantage as it allows for more exposure to the market to find that motivated buyer that will accept the highest selling price.

 

To the OP: Has your friend stated a price or is he waiting for you to make an offer? We're all waiting for the option sticker and to find out if it's a stick or Tip.