Based on the data provided, we can observe that the coin in question has had closing prices ranging from 25 euros to 1900 euros in previous auctions. The current condition of the coin is rated at 70 (VF+), indicating that it is not in the best condition, but also not in the worst.

Considering that the average closing price of the coin has been 464.18 euros and that the starting price on this occasion is 75 euros, we can estimate a maximum purchase price based on this data. Given the current condition of 70 (VF+), and taking into account previous closing prices, as well as the starting price and the average closing price, we could consider an estimated maximum purchase price around 500-600 euros.

It is important to note that the final auction price will depend on several factors, such as the demand at that specific moment, competition from other bidders, and interest in the coin in question. Therefore, it is advisable to pay attention to the auction and adjust the offer accordingly.