Based on the data provided, we can observe that the coin in question has performed well in previous auctions, with final prices exceeding the starting price in most cases. The coin's condition is graded at 75 (MBC), indicating that it is in an acceptable state.

Taking into account the previous prices of this coin, its performance in past auctions, and its current condition, we can estimate a maximum purchase price of around 90 euros. This price aligns with previous final auction prices and the average auction price of 45 euros.

It is important to note that the final auction price may vary depending on the demand at the time of the auction and other external factors.