Based on the provided data, we can see that the coin in question has had closing prices ranging from 27.54 euros to 260 euros in previous auctions. The current estimated condition of the coin is 80 (MBC+).

The average closing price of previous auctions is 108.71 euros, while the average starting price is 77.58 euros. However, the starting price for the next auction is 60 euros.

Given the good condition of the coin (80 MBC+), and considering the previous closing prices, as well as the current starting price and average closing price, we could estimate a maximum purchase price of around 150-180 euros for this coin in the next auction. It is important to note that the final price may vary depending on the demand at the auction and other external factors.