Based on the data provided, we can see that the coin in question has had a starting price in previous auctions ranging from 700 euros to 10606.68 euros. The average auction price has been 7893.89 euros, with a maximum of 22000 euros in a past auction.

Given that the current condition of the coin is 80 (VF+), and considering that it has reached prices of up to 22000 euros in a past auction, we could estimate a maximum purchase price around 22000 euros, taking into account that the coin will be auctioned in the coming days and has performed well in previous auctions.

It is important to consider that the final auction price will depend on several factors, such as the demand at that specific moment, the competition from other bidders, and the overall state of the coin collectors' market.