Re:
Sorry, I was being unhelpful...
Very small and extra large sizes don't sell as well, so less value.
Original specification?
Has it been left out in the rain for 10 years or has it been hanging on someone's wall? - is it your version of 'great condition ' or that of a discerning collector?
Is it 'Upgraded'? - does that mean real upgrades of high spec boutique components? Or someone has bought a load of new low end eBay junk and bolted it on?
There are many factors
Like mkone says post in the 'how much is my....worth?' Section And include lots of pictures, history and whatever else you know about the bike