Realistically, all relative info should be posted on the sales thread.
-age and usage
-number of owners
-upgrades and parts
-painted or not
-scratches and damage
-price or specific trades
-pictures (if possible)
-make and model
If you don't post that info plus anything else relevant, the seller will make his own life difficult. It really limits the amount of questions he'll get as well.
Read trader ratings, and get all questions out in your first PM. Simple.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē