Hi.
This is just a thought for consideration/discussion..
Every sale is of course the prerogative for the seller and buyer to make.
However, considering that 2nd hand telescopes are so hard to come by, it might be in the interest of this community to recommend a 3-7 day window before a sale of a 2nd-hand telescope is finalised.
This is simply for the interests of willing buyers that do not wish to check the forum every night.
Additionally, the buyer might receive a better offer, and 2nd-hand equipment will have the opportunity to pass into a larger group of hands.