Based on the data provided, we can observe that the coin in question has had an average starting price of 40.48 euros in previous auctions, with an average closing price of 107.45 euros. Additionally, the coin's condition is rated at 85 (ebc-).

Analyzing the previous prices of this coin, we can see that it has had a wide price range, from 20 euros to 417.71 euros in previous auctions. The conservation value has ranged between 75 and 90.

Given that the coin is in a conservation state of 85 (ebc-), and considering the previous prices and the average closing price, as well as the fact that it has been auctioned several times in the past, we could estimate a maximum purchase price around 120-130 euros for this coin in the next auction. It is important to note that the final price may vary depending on demand and other factors at the time of the auction.