Based on the provided data, we can observe that the coin in question has had a starting price of 30 euros in this auction and is in a conservation grade of 80 (MBC+). Additionally, it has been auctioned in the past on several occasions, with closing prices ranging between 22 and 120 euros.

The average closing price of this coin in previous auctions has been 74.93 euros, with an average starting price of 53.28 euros. We can also see that it has had an estimated price of up to 150 euros in the past.

Given that the conservation of the coin is relatively high (80), and considering the previous closing prices as well as the average closing price, we could estimate a maximum purchase price for this coin at around 120-130 euros. This is considering that it has reached prices of up to 150 euros in previous auctions and that its conservation is good.

It is important to note that the final auction price will depend on the demand at that specific moment, so the final price may vary.