Based on the data provided, we can observe that the coin in question has had a starting price in previous auctions ranging from 30 euros to 400 euros, with estimated prices ranging from 50 euros to 500 euros. The final auction price has fluctuated between 45 euros and 420 euros.

Given that the condition of the coin to be auctioned is 80 (VF+), and considering the previous prices of similar auctions, as well as the fact that it has been sold in 8 out of 13 past auctions, we could estimate a maximum purchase price around 350 euros.

It is important to note that the final auction price will depend on various factors, such as demand at the time of the auction, competition from other bidders, and the particular interest that this specific coin may generate.