Based on the data provided, we can observe that the coin in question has had an average starting price of 76.43 euros in previous auctions, with an average closing price of 138.33 euros. Additionally, the condition of this coin is estimated to be 70 (VF+), indicating that it is in an acceptable but not excellent condition.

Taking into account the previous prices of this coin in past auctions, as well as its current condition, we can estimate a maximum purchase price. Since the highest closing price was 230 euros in a past auction, and considering the current condition is 70 (VF+), we could consider an estimated maximum purchase price around 200 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 factors that may influence the valuation of the coin.