Based on the provided data, we can observe that the coin in question has had an average auction price of 108.48 euros in the past. Additionally, its current condition is 80 (MBC+). Considering that the condition is quite good and the average auction price has been 108.48 euros, we could estimate a maximum purchase price around 120-130 euros. It is important to note that the final price in an auction may vary depending on demand and other factors, so it is advisable to pay attention to the auction to adjust the offer accordingly.